SSC CGL 2023 Tier-I Official Paper (Held On: 26 Jul 2023 Shift 3) (Previous Year Paper)

The logic followed here is :-

The unit of Energy is Joule.

Similarly,

The unit of Current is Ampere.

Hence, the correct answer is "Current : Ampere".

The correct mirror image is:

Hence, the correct answer is "Option 3".

The logic followed here is :-

(First number + Second number) ÷ 2 = Third number

• (7, 15, 11) → (7 + 15) ÷ 2 = 22 ÷ 2 = 11

and

• (9, 19, 14) → (9 + 19) ÷ 2 = 28 ÷ 2 = 14

Similarly,

• (11, 23, 17) → (11 + 23) ÷2 = 34 ÷ 2 = 17

Hence, the correct answer is "(11, 23, 17)".

The arrangement of the given words in the order in which they appear in an English dictionary is as shown below :

6. Strange
7. Stranger
8. Strategy
9. Strength
10. Stretch
11. Struggle

Hence, the correct answer is "6, 3, 1, 2, 4, 5".

The correct mirror image of the given figure when the mirror is placed at MN as shown below :

Detailed Explanation:

• The line MN is the mirror.
• The word 'guw2rtdh4' ends with second letter 'h'. So, the mirror should be '

' ⇒ Option 1 is eliminated.

• The word 'guw2rtdh4' ends with fourth letter 't'. So, the mirror will be '

' ⇒ Option 2 is eliminated.

• The word 'guw2rtdh4' starts with second letter as 'u'. So, the mirror will be '

'  ⇒ Option 3 is eliminated

Hence, the correct answer is "Option 4".

The figure that will replace the question mark (?) in the following figure series is shown below:

1. .Step1:-

 

 

2. Step 2:- K has disappeared and C has appeared in the place of K

 

3. Step 3:- Similar to Step 1 

 

4. Step 4:- Similar to  Step 2, here V will disappear and 2 will appear in place of V

Final series is

Hence, ‘option - (1)’ is the correct answer.

The logic followed here is :-

• BET : UXM

and

• SYP : LRI

Similarly,

• HOX : ?

Hence, the correct answer is "AHQ".

The logic followed here is :-

• MAGNET : AMNGTE

and

• FAMILY : AFIMYL

Similarly,

• BLOCKS : ?

Hence, the correct answer is "LBCOSK".

The logic followed here is :-

 

Hence, the correct answer is "WFKP".

Preparing the family tree using the following symbol:

Family Tree :-

∴ Here, the boy in photograph is 'brother' to Reema's daughter.

Hence, the correct answer is "Brother".

The correct mirror image of the given figure when the mirror is placed at MN as shown below :

Detailed Explanation:

• The line MN is the mirror.
• The word 'AZ381tGD' ends with last second letter as 'G'. So, the mirror image should be '

'. ⇒ Option 1 is eliminated.

• The word 'AZ381tGD' starts with third number as '3'. So, the mirror image will be '

'. ⇒ Option 3 is eliminated.

• The word 'AZ381tGD' starts with second letter as 'Z'. So, the mirror image will be '

'. ⇒ Option 2 is eliminated.

Hence, the correct answer is "Option 4".

The logic followed here is :-

1) EILN

2) AEHJ

3) MOQX

4) RVYA

∴ Here, 'MOQX' id different from other three alternatives.

Hence, the correct answer is "MOQX".

The logic followed here is :-

By using BODMAS RULE :

Option 1) : −, +, ÷, ×, =

Given equation : 76 * 4 * 26 * 13 * 9 * 62

After inserting the mathematical operators in given equation the equation is as follows : 76 - 4 + 26 ÷ 13 × 9 = 62

⇒ 76 - 4 + 26 ÷ 13 × 9 = 62

⇒ 76 - 4 + 2 × 9 = 62

⇒ 76 - 4 + 18 = 62

⇒ 94 - 4 = 62

⇒ 90 ≠ 62

LHS ≠ RHS

Option 2) : +, ÷, ×, −, =

Given equation : 76 * 4 * 26 * 13 * 9 * 62

After inserting the mathematical operators in given equation the equation is as follows : 76 + 4 ÷ 26 × 13 - 9 = 62

⇒ 76 + 4 ÷ 26 × 13 - 9 = 62

⇒ 76 + 0.1538 × 13 - 9 = 62

⇒ 76 + 2 - 9 = 62

⇒ 78 - 9 = 62

⇒ 69 ≠ 62

LHS ≠ RHS

Option 3) : +, −, ÷, ×, =

Given equation : 76 * 4 * 26 * 13 * 9 * 62

After inserting the mathematical operators in given equation the equation is as follows : 76 + 4 - 26 ÷ 13 × 9 = 62

⇒ 76 + 4 - 26 ÷ 13 × 9 = 62

⇒ 76 + 4 - 2 × 9 = 62

⇒ 76 + 4 - 18 = 62

⇒ 80 - 18 = 62

⇒ 62 = 62

LHS = RHS

Option 4) : ÷, −, +, ×, =

Given equation : 76 * 4 * 26 * 13 * 9 * 62

After inserting the mathematical operators in given equation the equation is as follows : 76 ÷ 4 - 26 + 13 × 9 = 62

⇒ 76 ÷ 4 - 26 + 13 × 9 = 62

⇒ 19 - 26 + 13 × 9 = 62

⇒ 19 - 26 + 117 = 62

⇒ 136 - 26 = 62

⇒ 110 ≠ 62

LHS ≠ RHS

Hence, the correct answer is "+, −, ÷, ×, =".

The figure that will replace the question mark (?) in the following figure series is shown below:

All elements are shifted anticlockwise direction.

1) 

2) 

3) 

Final series is

Hence, ‘option - (2)’ is the correct answer.

The logic followed here is :-

By using BODMAS RULE :

Option 1) : + and ÷

Given equation is  : 1000 - 448 + 14 ÷ 15 × 2 = 998

After interchanging the two signs the equation is as follows : 1000 - 448 ÷ 14 + 15 × 2 = 998

⇒ 1000 - 448 ÷ 14 + 15 × 2 = 998

⇒ 1000 - 32 + 15 × 2 = 998

⇒ 1000 - 32 + 30 = 998

⇒ 1030 - 32 = 998

⇒ 998 = 998

LHS = RHS

Option 2) : × and ÷

Given equation is  : 1000 - 448 + 14 ÷ 15 × 2 = 998

After interchanging the two signs the equation is as follows : 1000 - 448 + 14 × 15 ÷ 2 = 998

⇒ 1000 - 448 + 14 × 15 ÷ 2 = 998

⇒ 1000 - 448 + 14 × 7.5 = 998

⇒ 1000 - 448 + 105 = 998

⇒ 1105 - 448 = 998

⇒ 657 ≠ 998

LHS ≠ RHS

Option 3) : - and +

Given equation is  : 1000 - 448 + 14 ÷ 15 × 2 = 998

After interchanging the two signs the equation is as follows : 1000 + 448 - 14 ÷ 15 × 2 = 998

⇒ 1000 + 448 - 14 ÷ 15 × 2 = 998

⇒ 1000 + 448 - 0.933 × 2 = 998

⇒ 1000 + 448 - 1.866 = 998

⇒ 1448 - 1.866 = 998

⇒ 1446.133 ≠ 998

LHS ≠ RHS

Option 4) : ÷ and -

Given equation is  : 1000 - 448 + 14 ÷ 15 × 2 = 998

After interchanging the two signs the equation is as follows : 1000 ÷ 448 + 14 - 15 × 2 = 998

⇒ 1000 ÷ 448 + 14 - 15 × 2 = 998

⇒ 2.232 + 14 - 15 × 2 = 998

⇒ 2.232 + 14 - 30 = 998

⇒ 16.232 - 30 = 998

⇒ -13.7678 ≠ 998

LHS ≠ RHS

Hence, the correct answer is "+ and ÷".

The logic followed here is :-

By using BODMAS RULE :

Option 1) : 10, 80, ÷, -

Given equation is  : 15 ÷ 80 - 34 + 10 × 8 = 102

After interchanging the two numbers and two signs the equation is as follows : 15 - 10 ÷ 34 + 80 × 8 = 102

⇒ 15 - 10 ÷ 34 + 80 × 8 = 102

⇒ 15 - 0.29411 + 80 × 8 = 102

⇒ 15 - 0.29411 + 640 = 102

⇒ 655 - 0.29411 = 102

⇒ 654.7058 ≠ 102

LHS ≠ RHS

Option 2) : 15, 34, -, ×

Given equation is  : 15 ÷ 80 - 34 + 10 × 8 = 102

After interchanging the two numbers and two signs the equation is as follows : 34 ÷ 80 × 15 + 10 - 8 = 102

⇒ 34 ÷ 80 × 15 + 10 - 8 = 102

⇒ 0.425 × 15 + 10 - 8 = 102

⇒ 6.375 + 10 - 8 = 102

⇒ 16.375 - 8 = 102

⇒ 8.375 ≠ 102

LHS ≠ RHS

Option 3) : 34, 15, +, ÷

Given equation is  : 15 ÷ 80 - 34 + 10 × 8 = 102

After interchanging the two numbers and two signs the equation is as follows : 34 + 80 - 15 ÷ 10 × 8 = 102

⇒ 34 + 80 - 15 ÷ 10 × 8 = 102

⇒ 34 + 80 - 1.5 × 8 = 102

⇒ 34 + 80 - 12 = 102

⇒ 114 - 12 = 102

⇒ 102 = 102

LHS = RHS

Option 4) : 10, 34, ÷, ×

Given equation is  : 15 ÷ 80 - 34 + 10 × 8 = 102

After interchanging the two numbers and two signs the equation is as follows : 15 × 80 - 10 + 34 ÷ 8 = 102

⇒ 15 × 80 - 10 + 34 ÷ 8 = 102

⇒ 15 × 80 - 10 + 4.25 = 102

⇒ 1200 - 10 + 4.25 = 102

⇒ 1204.25 - 10 = 102

⇒ 1194.25 ≠ 102

LHS ≠ RHS

Hence, the correct answer is "34, 15, +, ÷".

The logic followed here is:

Logic: (First number + Third number)² = Second number

• (4, 81, 5) → (4 + 5)² = 9² = 81

and

• (3, 144, 9) → (3 + 9)² = 12² = 144

Similarly,

• (2, 100, 8) → (2 + 8)² = 10² = 100

Hence, the correct answer is "(2, 100, 8)".

The logic followed here is :-

Logic: ((First number ÷ 2) + 1)² = Second number

1) 24 : 169 → ((24 ÷ 2) + 1)² = (12 + 1)² = 13² = 169

2) 12 : 49 → ((12 ÷ 2) + 1)² = (6 + 1)² = 7² = 49

3) 48 : 625 → ((48 ÷ 2) + 1)² = (24 + 1)² = 25² = 625

4) 36 : 365 → ((36 ÷ 2) + 1)² = (18 + 1)² = 19² = 361

∴ Here, '36 : 365' is different from other three alternatives.

Hence, the correct answer is "36 : 365".

The least possible Venn diagram for the given statements is as shown below :

Conclusions:

(I) Some tools are irons → False (As All tools are spanners and No spanner is an iron so, Some tools are irons is false)

(II) Some utensils are tools → False (As All tools are spanners and Some spanners are utensils so, Some utensils are tools is false)

(III) Some utensils are not iron → True (As All tools are spanners and Some spanners are utensils and No spanner is an iron so, Some utensils are not iron is true)

Hence, the correct answer is "Only conclusion III follows".

The least possible Venn diagram for the given statements is as shown below :

Conclusions:

I. All tuberculosis are curable →True (As All tuberculosis are diseases and All diseases are curable so, All tuberculosis are curable is true)

II. Some cancers are tuberculosis → False (As All cancers are diseases and All tuberculosis are diseases so, Some cancers are tuberculosis is false)

III. All cancers are curable → True (As All cancers are diseases and All diseases are curable so, All cancers are curable is true)

Hence, the correct answer is "Only conclusions I and III follow".

The logic followed here is :-

“XPDJOA” is written as “DPXAOJ”.

and

“THBRUC” is written as “BHTCUR”.

Similarly,

“GILDZM” will be written as :

Hence, the correct answer "LIGMZD".

After unfolding the given paper the figure formed is as shown below :

Hence, the correct answer is "Option 3".

The logic followed here is :-

Hence, the correct answer is "172".

The logic followed here is :-

Logic: Second number = First number³ - First number².

17: 4624 → 17³ - 17² = 4913 - 289 = 4624

13: 2028 → 13³ - 13² = 2197 - 169 = 2028

Let's check each option,

1. 4 : 180 → 4³ - 4² = 64 - 16 = 48

2. 7 : 180 → 7³ - 7² = 343 - 49 = 294

3) 6 : 180 → 6³ - 6² = 216 - 36 = 180

4. 11 : 180 → 11³ - 11² = 1331 - 121 = 1210

Hence, the correct answer is "6".

The logic followed here is :-

∴ Here, 'L' is coded as '3'.

Hence, the correct answer is "3".

The correct answer is 30%.

Key Points

• A legislative bill providing reservation to women in state government jobs has been approved by Uttarakhand Governor, Lt Gen (Retd.) Gurmit Singh in January 2023.
• 30% reservation has been approved for women in state government jobs in Uttarakhand.
• According to the Uttarakhand Public Services (Horizontal Reservation for Women) Bill 2022, women candidates who permanently reside in Uttarakhand will be given preference for 30% of open positions in public services and posts after July 24, 2006, with 20% of the vacancies being filled through horizontal reservation.

Additional Information

• Reservation refers to the policy of reserving a certain percentage of seats or positions in government jobs, educational institutions, and other areas for certain groups of people who have been historically disadvantaged or discriminated against.
• In India, reservation policies are used to address historical inequalities based on caste, tribe, gender, and other factors.
• Women's reservation in government jobs has been a long-standing demand in India, as women have historically been underrepresented in the public sector workforce.
• The approval of this legislative bill in Uttarakhand is a significant step towards increasing women's representation and participation in the state government workforce.

The correct answer is secondary alcohol.

Key Points

• Butan-2-ol has a chemical formula of C₄H₁₀O and is a type of alcohol.
• It is a secondary alcohol because the hydroxyl (-OH) group is attached to a carbon atom that is bonded to two other carbon atoms.
• Butan-2-ol is commonly used as a solvent and is also used in the production of other chemicals such as butyl acetate.

Additional Information

• Tertiary alcohols have the hydroxyl group attached to a carbon atom that is bonded to three other carbon atoms, while primary alcohols have the hydroxyl group attached to a carbon atom that is bonded to only one other carbon atom.
• Tertiary alcohols have a higher boiling point than primary and secondary alcohols because they have a more complex molecular structure.
• Ketones have a carbonyl group (C=O) in the middle of the carbon chain, which is not present in butan-2-ol.
• Ketones are commonly used as solvents and are also used in the production of polymers, pharmaceuticals, and other chemicals.
• Primary alcohols can be oxidized to form aldehydes and then further oxidized to form carboxylic acids.
• Secondary alcohols can be oxidized to form ketones, but they cannot be further oxidized to form carboxylic acids.

The correct answer is West Meets East.

Key Points

• Indian musician Ravi Shankar won his first Grammy Award in 1968 for best chamber music performance for the work "West Meets East".
• "West Meets East" is a collaboration between Ravi Shankar and Yehudi Menuhin, a renowned violinist.
• The album features a fusion of Indian classical music and Western classical music.

Additional Information

• In the latter part of the 20^th century, Ravi Shankar rose to prominence as the most well-known authority on North Indian classical music worldwide.
• In 1999, Shankar received the Bharat Ratna, the highest civilian distinction in India.
• "The Concert for Bangladesh" was a benefit concert organized by George Harrison and Ravi Shankar in 1971 to raise funds for refugees in East Pakistan (now Bangladesh).
• "The Sounds of India" is a 1968 album by Ravi Shankar that features traditional Indian classical music.
• "Full Circle - Carnegie Hall" is a live album by Ravi Shankar, released in 2002, that features a concert recorded at Carnegie Hall in 2000.

The correct answer is Penner.

Key Points

• Penner river does not flow in Kerala state.
• Penner river, also known as Penna, is a river that flows through the southern states of India, including Andhra Pradesh, Karnataka, and Tamil Nadu.
• It originates from the Nandi Hills in Karnataka and flows through the Pennar delta before merging with the Bay of Bengal.
• Kerala is a state in the southern part of India, known for its backwaters and rivers.

Additional Information

• Bharathapuzha, also known as Nila, is the second-longest river in Kerala and flows through Palakkad, Thrissur, and Malappuram districts.
• Bharathapuzha is also known as the "River of Kerala" and is considered as the cultural symbol of the state.
• Periyar is another important river in Kerala that flows through the districts of Idukki and Ernakulam, and is the lifeline of the city of Kochi.
• Periyar is also known as the "Lifeline of Kerala" and is the largest river in the state in terms of discharge.
• Pamba is known for its annual pilgrimage to the Sabarimala temple, where millions of devotees gather to offer prayers.
• Pamba is a river that originates from the Western Ghats and flows through the districts of Pathanamthitta, Alappuzha, and Kottayam.

The correct answer is Odissi.

Key Points

• Guru Kelucharan Mohapatra was a renowned Odissi dancer and choreographer from Odisha, India.
• The Guru Kelucharan Mohapatra Award was established in his honor to recognize and promote excellence in classical dance forms.
• Sri Ratikant Mohapatra, the son and follower of Guru Mohapatra, established the Award in 1995.

Additional Information

• Mohiniyattam is a classical dance form from Kerala, India, known for its graceful movements and expressive storytelling.
• The name of the dance comes from Mohini, the Hindu goddess Vishnu's female enchantress incarnation.
• Kathak is a classical dance form from northern India, known for its intricate footwork and rhythmic patterns.
• This dance form is from Uttar Pradesh.
• Kuchipudi is a classical dance form from Andhra Pradesh, India.
• It is known for its dynamic movements and theatrical style.

The correct answer is 86^th.

Key Points

• The 86^th Constitutional Amendment Act of 2002 made the right to education a fundamental right for all children aged between six to fourteen years, further strengthening the provisions of the 42^nd Amendment.

Additional Information

• The 62^nd Constitutional Amendment Act 1989 deals with Article 334 of the Constitution which states that the provisions of the Constitution relate to reservation of seats for the Scheduled Castes and the Scheduled Tribes.
• The 73^rd Constitutional Amendment Act of 1992 provided for the establishment of Panchayati Raj institutions in rural areas and devolved powers and responsibilities to them.
• The 42^nd Constitutional Amendment Act was passed in 1976, which inserted Article 51-A in the Constitution of India.

The correct answer is Cell wall.

Key Points

• The cell wall is a rigid layer that surrounds the cell membrane of plant cells, bacteria, fungi, and some protists.
• It provides structural support and protection to the cell, and helps maintain its shape.
• The cell wall is made up of cellulose, a complex carbohydrate that gives it its strength and rigidity.
• The cell wall also has pores that allow for the exchange of water, nutrients, and gases between the cell and its environment.

Additional Information

• The cell membrane is a thin, flexible layer that surrounds the cell and separates its internal environment from the external environment.
• It regulates the movement of substances in and out of the cell, and also plays a role in cell signaling and communication.
• Lysosomes are membrane-bound organelles that contain enzymes for breaking down and recycling cellular waste and foreign materials.
• They are found in animal cells, but not in plant cells.
• The Golgi apparatus is an organelle that sorts, modifies, and packages proteins and lipids for transport within the cell or secretion outside the cell.
• It is made up of a series of flattened, membrane-bound sacs called cisternae.

The correct answer is Kerala.

Key Points

• Guruvayur Ekadashi is a Hindu festival celebrated in the Guruvayur temple in Kerala.
• The festival usually falls in the month of November or December.
• Devotees fast on this day and offer prayers to Lord Vishnu for blessings and forgiveness.
• The festival is also known as 'Mokshada Ekadashi' and is considered one of the most important festivals in Kerala.

Additional Information

• Karnataka is a state in South India known for its rich culture and heritage.
• The state celebrates many festivals such as Mysuru Dasara, Ugadi, and Hampi Utsav.
• Andhra Pradesh is a state in South India known for its traditional arts and crafts.
• The state celebrates many festivals such as Ugadi, Diwali, and Sankranti.
• Tamil Nadu is a state in South India known for its rich history and cultural heritage.
• The state celebrates many festivals such as Pongal, Diwali, and Tamil New Year.

The correct answer is The Mediterranean.

Key Points

• The Western cyclonic disturbance is a weather phenomenon that occurs in the Indian subcontinent and is responsible for the winter rainfall in the region.
• It is known to originate over the Mediterranean Sea, where it gathers moisture and travels towards the Indian subcontinent.
• The Mediterranean Sea is a large body of water located between Europe, Asia, and Africa.
• It is known for its warm and humid climate, which makes it a favorable environment for the formation of cyclones.
• The Arabian Sea and the Bay of Bengal are also known for their cyclonic activity, but they are not the origin points for the Western cyclonic disturbance.

 

Additional Information

• The Arabian Sea is a part of the Indian Ocean, located between the Arabian Peninsula and the Indian subcontinent.
• It is known for its high sea surface temperatures and is a breeding ground for cyclones.
• The Bay of Bengal is another large body of water located in the northeastern part of the Indian Ocean, bounded by India, Bangladesh, and Myanmar.
• ​It is known for its frequent cyclonic activity, which is responsible for the monsoon rains in the region.
• The Pacific Ocean is the largest body of water on Earth, covering one-third of its surface area.
• It is known for its typhoons and hurricanes, which are responsible for a significant amount of damage and loss of life in the Pacific Rim countries.

The correct answer is Charles Wilson.

Key Points

• Arthur Compton was an American physicist who received the Nobel Prize in Physics in 1927 along with Charles Wilson for his discovery of the Compton effect.
• The cloud chamber is a device used in particle physics to detect the presence of charged particles.
• Charles Wilson was a Scottish physicist who invented the Wilson cloud chamber, a device used to detect ionizing radiation.

Additional Information

• Frederick Soddy was an English chemist who worked on radioactivity and isotopes.
• ​Together with Ernest Rutherford, he clarified that elemental transmutation—which is today understood to involve nuclear reactions—is the source of radioactivity.
• Ernest Lawrence was an American physicist who invented the cyclotron, a device used to accelerate charged particles.
• ​For the invention of the cyclotron, he was awarded the 1939 Nobel Prize in Physics.
• Harold Urey was an American chemist who received the Nobel Prize in Chemistry in 1934 for his discovery of deuterium.

The correct answer is Article 247.

Key Points

• The Indian Constitution provides for a three-tier judiciary system, comprising the Supreme Court, High Courts, and subordinate courts.
• The Parliament has the power to establish additional courts to deal with specific kinds of cases or to cater to the needs of a particular region or community.
• Article 247 of the Constitution empowers the Parliament to establish such courts for the better administration of laws made by it.
• This includes the power to create tribunals, which are specialized bodies that adjudicate on specific matters such as taxation, labor disputes, and environmental issues.

Additional Information

• Article 246 deals with the distribution of legislative powers between the Union and the States.
• It specifies that Parliament has exclusive power to make laws on matters listed in the Union List, while the State Legislatures have exclusive power to make laws on matters listed in the State List.
• Both the Union and the State Legislatures can make laws on matters listed in the Concurrent List.
• Article 248 provides for the residuary powers of legislation, i.e., the power to make laws on any matter not enumerated in the three lists.
• This power is vested in Parliament, subject to the provisions of the Constitution.
• Article 253 empowers the Parliament to make laws for implementing any international agreement, treaty, or convention.
• This power is necessary to fulfill India's obligations under international law and to ensure uniformity in the implementation of such agreements across the country.

The correct answer is Lord Mayo.

Key Points

• Lord Mayo was the Viceroy of India from 1869 to 1872, and he introduced the first regular census in India in 1872.
• The census was conducted to collect data on population, literacy, religion, and occupation, among other things, to assist the colonial government in policymaking and resource allocation.
• The census was conducted every ten years, and the subsequent censuses were held in 1881, 1891, and so on, until the present day.

Additional Information

• Lord Lawrence served as Viceroy of India from 1864 to 1869.
• Lord Lawrence's policy as Viceroy of India focused on non-intervention in Indian cultural and religious matters to maintain peace post-1857 Rebellion. He prioritized infrastructure development, particularly in railways and irrigation, to support agriculture and prevent famines. His approach to foreign relations was non-expansionist, avoiding military interventions and opting for diplomacy. Lawrence's administration emphasized economic stability and cautious governance to avoid further unrest.
• Lord Canning served as Viceroy of India from 1856 to 1862.
• He was responsible for the administration of India during the Indian Rebellion of 1857.
• He was responsible for the establishment of the Indian Councils Act of 1861, which allowed for the appointment of Indians to legislative councils.
• Lord Cornwallis served as Governor-General of India from 1786 to 1793.
• He was responsible for introducing several administrative and judicial reforms in India, including the establishment of the Cornwallis Code.

The correct answer is Raja Ram Mohan Roy.

Key Points

• Raja Ram Mohan Roy was a social reformer and founder of the Brahmo Samaj, a socio-religious reform movement in India.
• He was a strong advocate of monotheism and denounced the belief in many Gods, which was prevalent in Hinduism during his time.
• Raja Ram Mohan Roy was a prolific writer and wrote extensively on various social, religious, and political issues of his time.
• Some of his notable works include "Tuhfat-ul-Muwahhidin" (Gift to Monotheists) and "Precepts of Jesus, the Guide to Peace and Happiness."

Additional Information

• Swami Shraddhanand was a disciple of Swami Dayanand.
• He played a key role in the revival of Hinduism through the Arya Samaj movement.
• Swami Dayanand was the founder of the Arya Samaj.
• He was a strong advocate of Vedic principles and monotheism.
• Swami Vivekananda was a disciple of Sri Ramakrishna and played a key role in the revival of Hinduism through the Ramakrishna Mission.
• He emphasized the unity of all religions and the importance of self-realization.

The correct answer is Obelia.

Key Points

• Metagenesis refers to a type of alternation of generations where the life cycle of an organism involves both sexual and asexual reproduction.
• In this process, the offspring of the sexual phase undergo a phase of asexual reproduction before they mature into the sexual phase.
• Obelia is a genus of colonial hydrozoans that exhibit metagenesis.
• They have a complex life cycle that involves both polyp and medusa stages, and the polyps undergo asexual reproduction to produce medusae.

Additional Information

• Spongilla is a genus of freshwater sponges that do not exhibit metagenesis.
• They reproduce sexually by releasing sperm and eggs into the water, which then develop into larvae that settle and grow into adult sponges.
• Sycon is a genus of calcareous sponges that do not exhibit metagenesis.
• They reproduce sexually by releasing sperm and eggs into the water, which then develop into free-swimming larvae that settle and grow into adult sponges.
• Euspongia is a genus of marine sponges that do not exhibit metagenesis.
• They reproduce sexually by releasing sperm and eggs into the water, which then develop into free-swimming larvae that settle and grow into adult sponges.

The correct answer is Ganga and Son.

Key Points

• Magadha Mahajanapada was an ancient kingdom located in the eastern part of India during the 6^th century BCE.
• The kingdom was surrounded by several rivers, but the correct answer is Ganga and Son.
• The Ganga river flows from the Himalayas in the north to the Bay of Bengal in the east and passes through the middle of Magadha Mahajanapada.
• The Son river, on the other hand, is a tributary of the Ganga and flows through the southern part of the kingdom.

Additional Information

• The Jhelum river is located in the northwestern region, and flows through present-day Pakistan.
• The Yamuna river is another major tributary of the Ganga, but it does not flow through Magadha Mahajanapada.
• The Ghaghara river is also a tributary of the Ganga, but it is located in the northern part of India.
• The Magadha Mahajanapada was one of the most powerful and prosperous kingdoms during the ancient period and was ruled by several prominent dynasties such as the Haryanka and the Maurya.
• The kingdom was known for its rich culture, art, literature, and trade, and played a significant role in shaping the political and social landscape of ancient India.

The correct answer is Manipuri.

Key Points

• Lai Haraoba is a traditional festival of Manipur, which is celebrated through dance and music performances.
• It is believed that Lai Haraoba gave birth to Manipuri classical dance, which is now recognized as one of the eight classical dance forms of India.
• Lai Haraoba is the earliest form of Manipuri classical dance of India.

Additional Information

• Manipuri is a classical dance form that originated in the northeastern state of Manipur.
• It is characterized by graceful movements, delicate hand gestures, and fluid footwork.
• Mohiniyattam is a classical dance form from Kerala, which is also known for its graceful movements and facial expressions.
• Sattriya is a classical dance form from Assam, which is known for its religious themes and vibrant costumes.
• Kathakali is a classical dance form from Kerala, which is known for its elaborate makeup, costumes, and facial expressions.

The correct answer is Pat Cummins.

Key Points

• Pat Cummins became the first fast bowler to take up captaincy of the Australian men's Test side full-time in November 2021.
• In 2023, he led Australia to their sixth World Cup victory.
• As the best-performing Australian cricket player of the year, Cummins received the Allan Border Medal.
• In November 2021, he was named Australia's Test captain permanently.

Additional Information

• Steve Smith had previously served as the captain of the Australian team but was stripped of the position due to his involvement in the ball-tampering scandal in 2018.
• Nathan Lyon is a spin bowler.
• ​In 2011, he made his Test debut.
• Tim Paine was the previous captain of the Australian team but resigned from the position due to personal reasons.
• Paine took home the 2009 ICC Champions Trophy with Australia.

The correct answer is the amount of investment.

Key Points

• Small scale units are differentiated from large scale units on the basis of the amount of investment.
• Investment is a key factor because small scale units typically have less access to funding and resources than large scale units.
• They may rely on personal savings, loans, or grants to get started and may have to be more efficient with their resources to stay competitive.
• The amount of investment can also impact the growth potential of a business.
• Small scale units may have limited resources to expand or develop new products, while large scale units may have more flexibility to invest in research and development.

Additional Information

• The definition of small scale units varies by country and industry, but generally, they are businesses that require less investment and have fewer employees than large scale units.
• Small scale units may have lower output and sales volumes than large scale units, but this is not the defining characteristic.
• A small scale unit could still have high sales and output if it specializes in a niche market or has a unique product.
• The size of the unit area is also not a defining characteristic of small scale units.
• A small scale unit could operate out of a small space or a large one, depending on its needs.

The correct answer is Hirapur.

Key Points

• IISCO (Indian Iron and Steel Company) was established in 1918 as a public sector undertaking by the government of India.
• It was the first integrated steel plant in the Asia-Pacific region.
• IISCO set up its first factory at Hirapur.
• IISCO was nationalized in 1972 and was merged with Steel Authority of India Limited (SAIL) in 2006.

Additional Information

• Roorkie is a city in the Indian state of Uttarakhand.
• It has an army cantonment and is known for its engineering college, Indian Institute of Technology Roorkee.
• Jamshedpur is a city in the Indian state of Jharkhand.
• It is known for being the first planned industrial city in India and for the Tata Steel plant located there.
• Bhilai is a city in the Indian state of Chhattisgarh.
• It is known for the Bhilai Steel Plant, which is operated by SAIL and is the largest steel plant in India.

The correct answer is 10.

Key Points

• The number of flights in a 110 m hurdle race is 10.
• A hurdle race is a track and field event where athletes run and jump over hurdles that are placed along the track.
• The number of flights in a hurdle race refers to the number of times an athlete jumps over a hurdle.
• In a 110 m hurdle race, the hurdles are spaced out at a distance of 9.14 meters from each other and the height of the hurdle is 1.067 meters.

Additional Information

• Track and field is a sport that involves throwing, running, and jumping competitions.
• The World Athletics Championship and the Olympic track and field competition are now the two most prestigious international events in track and field.
• The international body that oversees athletics is called World Athletics.

The correct answer is China.

Key Points

• China won the highest number of golds in Paralympic-2020.
• China won a total of 96 gold medals in Paralympic-2020, which is the highest number of golds won by any country in the event.
• China's success in Paralympic-2020 can be attributed to their strong performance in events like swimming, athletics, and table tennis.
• China has been a dominant force in Paralympic events for several years and has consistently been one of the top-performing countries in the event.

Additional Information

• Australia won the second-highest number of golds in Paralympic-2020, securing a total of 80 gold medals.
• Australia's success in the event can be attributed to their strong performance in events like swimming, cycling, and athletics.
• The US secured the third position in the medal tally with a total of 74 golds in Paralympic-2020.
• The US's success in the event can be attributed to their strong performance in events like swimming, athletics, and wheelchair basketball.
• Great Britain won a total of 41 gold medals in Paralympic-2020, securing the fourth position in the medal tally.
• Great Britain's success in the event can be attributed to their strong performance in events like cycling, swimming, and athletics.

The correct answer is Rajkumar Shukla.

Key Points

• Rajkumar Shukla was a farmer from Champaran who met Gandhi in 1917 and convinced him to visit Champaran to understand the problems of the peasants.
• Mahatma Gandhi's visit to Champaran in 1917 was a turning point in the Indian independence movement, as it marked the beginning of his Satyagraha movement.
• Champaran was a district in Bihar where indigo plantations were owned by British landlords, who forced the local peasants to cultivate indigo and sell it at a fixed price, leading to exploitation and poverty.
• Rajkumar Shukla was a poor farmer who approached Gandhi during his train journey to Lucknow and convinced him to visit Champaran.
• Gandhi stayed in Champaran for several months and organized a successful Satyagraha movement, which forced the British to repeal the oppressive indigo cultivation laws.
• The Champaran movement was significant because it was the first time that Gandhi used Satyagraha as a political tool, and it paved the way for future non-violent protests in the Indian independence movement.

Additional Information

• Jaiprakash Narayan was a freedom fighter and socialist activist who worked closely with Gandhi.
• ​He is most known for spearheading the opposition movement against Prime Minister Indira Gandhi in the middle of the 1970s and advocating for a "total revolution" to remove her from office.
• Maulana Mazharul Haque was a Muslim leader who supported the Khilafat Movement and worked with Gandhi.
• ​Rajendra Prasad, India's first president, paid tribute to him in his book India Divided, describing him as a "devout Muslim and passionate patriot".
• Vallabhbhai Patel was a prominent leader of the Indian independence movement and worked closely with Gandhi.
• ​From 1947 until 1950, he was India's first Deputy Prime Minister and Home Minister.

The correct answer is West Bengal.

Key Points

• West Bengal is the correct answer as the state assembly passed a resolution in July 2021 to create a Legislative Council, which would act as a second chamber of the state legislature.
• The creation of a Legislative Council in West Bengal has been a topic of debate for several years and the resolution was passed after the ruling party won a majority in the state assembly elections held earlier in 2021.

Additional Information

• 292 of the 294 constituencies were included in the 2021 West Bengal Legislative Assembly election, which was the 17^th quinquennial legislative election for the 17^th legislative assembly of West Bengal.
• Maharashtra already has a Legislative Council and there was no recent resolution passed to create a new one.
• At present, there are legislative councils in 6 states of the country - Andhra Pradesh, Bihar, Karnataka, Maharashtra, Telangana, and Uttar Pradesh.

The correct answer is GST collected by the government.

Key Points

• Revenue receipt refers to the income received by the government in the normal course of its business activities, such as taxes, duties, fees, and other charges.
• GST (Goods and Services Tax) is a tax levied on the supply of goods and services in India.
• It is a revenue receipt for the government, as it is collected on behalf of the government by the businesses that are registered under GST.

Additional Information

• Receipts from sale of shares of public sector companies is a capital receipt as it involves the sale of assets.
• Recovery of loans is also a capital receipt as it involves the recovery of loans given by the government.
• Borrowings from public is a capital receipt as it involves the borrowing of funds by the government from the public.
• Capital receipts are those that either increase the government's liabilities or lower the value of its assets.
• In essence, these are the loans that the government has obtained from a variety of sources to pay for long-term developmental requirements.
• They are non-recurring in nature.

The correct answer is Ghiyasuddin Balban.

Key Points

• Ghiyasuddin Balban was a ruler of the Delhi Sultanate who reigned from 1266 to 1287 CE.
• He is known for his strict policies and authoritarian rule, which helped him maintain stability in the kingdom.
• Balban introduced the practice of Sijada and Paibos in the royal court.
• Sijada was the act of touching the ground with one's forehead as a sign of respect, while Paibos was the act of kissing the monarch's feet.
• These practices were meant to reinforce the idea of the ruler's divine right to rule and to emphasize the superiority of the monarch over his subjects.
• Balban's reign was marked by several other significant developments, such as the establishment of a strong central administration, the creation of a standing army, and the construction of several monumental structures.

Additional Information

• Firoz Shah Tughlaq was a ruler of the Tughlaq dynasty who reigned from 1351 to 1388 CE.
• He is known for his patronage of art and literature and for his efforts to improve the infrastructure of the kingdom.
• Iltutmish was a ruler of the Slave dynasty who reigned from 1211 to 1236 CE.
• He is credited with establishing the Delhi Sultanate as a major power in the Indian subcontinent and for his military campaigns against rival kingdoms.
• Ibrahim Lodhi was a ruler of the Lodhi dynasty who reigned from 1517 to 1526 CE.
• He is known for his defeat at the hands of the Mughal emperor Babur in the Battle of Panipat, which marked the end of the Delhi Sultanate and the beginning of the Mughal Empire.

Shortcut Trick

In shadow problems, the height and shadow length are in direct proportion.

Ratio (Height : Shadow) → 7 : 28 ⇒ 1 : 4

This means every 1 storey creates a 4 m shadow.

For a 48 m shadow, number of storeys = 48 ÷ 4 = 12.

∴ The correct answer is 12 storeys.

Alternate Method

Given:

Number of storeys of first building (H₁) = 7

Shadow length of first building (S₁) = 28 m

Shadow length of second building (S₂) = 48 m

Formula Used:

For objects at the same time and place, (Height₁ / Shadow₁) = (Height₂ / Shadow₂)

Calculations:

⇒ Let the number of storeys of the second building be x.

⇒ 7 / 28 = x / 48

⇒ 1 / 4 = x / 48

⇒ x = 48 ÷ 4

⇒ x = 12

Therefore, the building has 12 storeys, which corresponds to option (4).

∴ The correct answer is 12 storeys.

Additional Information

Direct Proportion

Two quantities are in direct proportion if the ratio of their values remains constant (x/y = k). Here, Height ∝ Shadow length.

Similar Triangles in Shadows

Shadow problems are geometric applications of similar triangles, where the sun's rays are parallel, making the ratio of Height to Base (Shadow) identical for all vertical objects.

Unitary Method

A technique where you find the value of a single unit (e.g., length of shadow per storey) and then multiply to find the required value.

Shortcut Trick

Efficiency Ratio (W:M) ⇒ 10W × 16 : 6M × 8 ⇒ 160 : 48 ⇒ 10 : 3 (W=3, M=10).

Total Work = 10 × 3 × 16 = 480 units.

Work done by 12 men in 2 days = 12 × 10 × 2 = 240 units.

Remaining Work = 480 − 240 = 240 units.

New Efficiency (6M + 5W) = (6 × 10) + (5 × 3) = 75 units/day.

Total time = 2 + (240 ÷ 75) = 2 + 16/5 = 26/5 days.

∴ The correct answer is 26/5 days.

Alternate Method

Given:

Work completed by 10 women in 16 days.

Work completed by 6 men in 8 days.

Initial workforce: 12 men for 2 days.

New workforce: 6 men (12 − 6) and 5 women.

Formula Used:

Total Work = Number of persons × Efficiency × Time

Calculations:

⇒ 10 Women × 16 days = 6 Men × 8 days

⇒ 160W = 48M ⇒ 10W = 3M ⇒ M/W = 10/3

⇒ Efficiency of 1 Man (M) = 10 units, 1 Woman (W) = 3 units

⇒ Total Work = 48 × 10 = 480 units

⇒ Work done in first 2 days = 12M × 2 = 12 × 10 × 2 = 240 units

⇒ Remaining Work = 480 − 240 = 240 units

⇒ Efficiency of new group (6M + 5W) = 6(10) + 5(3) = 60 + 15 = 75 units/day

⇒ Time for remaining work = 240 ÷ 75 = 16/5 days

⇒ Total time taken = 2 + 16/5 = 26/5 days

∴ The correct answer is 26/5 days.

Additional Information

Work-Efficiency Relationship

Total work is the product of number of workers, their efficiency, and the time taken (Work = M × E × D). For the same work, (M₁D₁E₁) = (M₂D₂E₂).

Combined Efficiency

When different types of workers (men, women, children) work together, their net efficiency is the sum of their individual efficiencies multiplied by their respective counts.

Fractional Days

If work is not finished in a whole number of days, the time is expressed as (Total Work Done) / (Work done per day), often leading to improper fractions like 26/5.

Given:

Amount (A) = Rs. 1,100

Time(T) = 2 years

Rate of simple interest per annum(R) = 5%

Formula used:

Simple interest(SI) = (P × R × T) / 100

SI = A - P

Calculation:

Let, P = principal.

As per the question,

⇒  1100 - P =  (P × 5 × 2) / 100 

⇒  1100 - P =  P /10

⇒ 11P/10 = 1100

⇒ 11P = 11000

⇒ P = Rs 1000

∴ The correct option is 3

Given:

$\rm cos x + sec x = {7 \over2 √3}$

Concept used:

Secx = 1/Cosx

Calculation:

Let cosx = a , then secx = 1/a

As per the question,

⇒ a + 1/a = 7/2√3

⇒ a² + 1/a² = (7/2√3)² - 2

⇒ a2 + 1/a2 = 25 /12

∴ The correct option is 4

Concept used:

Sin²θ + Cos²θ = 1

Cos 2θ - Sin2θ = Cos2θ

Calculation:

${\cos^215^{\circ} - \sin^215^{\circ}} \over{\cos^2145^{\circ} + \sin^2145^{\circ}}$

⇒ Cos (2 ×15°)

⇒ Cos 30° = $\sqrt3 \over 2$

∴ The correct option is 3

Given:

An equilateral triangle sides are 16 cm each.

Concept used:

The area of an equilateral triangle is, √3 / 4 × a2 

Calculation:

The area of an equilateral triangle is

√3 / 4 × 16² = 64√3 cm2

∴ The correct option is 3

Calculation:

Let the smallest number i which when divided by 45, the remainder is 21 is

⇒ 45 +21 = 66

When 66 is divided by 15 the remainder is 6

∴ The correct option is 1

Given:

$\rm tan A = {3 \over 8},$

Concept used:

TanA = SinA / CosA

Calculation:

${3 \sin A + 2 \cos A} \over 3 \sin A - 2 \cos A$

Dividing by CosA we get,

3 TanA + 2 / 3 TanA - 2

Now putting the value of Tan A we get,

⇒ $(3 × {3\over8}+ 2)\over (3 × {3\over8}- 2)$

⇒ $- {25 \over7}$

∴ The  correct option is 2

Given:

Rajdhani Express train of length 108 m is running at the speed of 128 km/h.

Another train of length 148 m is standing at the station

Concept used:

Distance = speed × time 

Calculation: 

Total distance is , 108 + 148 = 256 m

⇒ Speed = 128 km/h = 128 × 5/18 m/s = 320/9 m/s

So, time = distance /speed

⇒ 256/ (320/9) = (256 × 9)/320 = 7.2 sec

∴ The correct option is 4

Calculation:

${2 \over 3} - {5 \over 6} \times {4 \over 5} \div {4 \over 3} + {1 \over 2}$

⇒ ${2 \over 3} - {5 \over 6} \times {4 \over 5} \times {3 \over 4} + {1 \over 2}$

⇒ 2/3 + 1/2 -1/2 = 2/3

∴ The correct option is 1

Calculation:

tan 4384° + cot 6814° 

⇒ tan (180° × 24 + 64°) + cot (90° × 75 + 64°)

⇒ tan  64°-  tan  64° = 0

∴ The correct option is 3

Shortcut Trick

Let Cost Price (CP) be 100.

Marked Price (MP) = 100 + 40% of 100 = 140.

Selling Price (SP) = 73.5% of 140 = 0.735 × 140 = 102.9.

Profit% = SP − CP = 102.9 − 100 = 2.9%.

∴ The correct answer is 2.9%.

Alternate Method

Given: MP is 40% above CP, SP is 73.5% of MP. Formulas: MP = CP × (1 + Markup%), SP = MP × (SP% of MP), Profit% = [(SP ÷ CP) − 1] × 100.

⇒ Let Cost Price = 100

⇒ Marked Price = 100 + (40% of 100) = 140

⇒ Selling Price = 140 × (73.5 ÷ 100) = 140 × 0.735

⇒ Selling Price = 102.9

⇒ Profit% = [(102.9 − 100) ÷ 100] × 100 = 2.9%

∴ The correct answer is 2.9%.

Additional Information

Marked Price and Discount

Marked Price is the price printed on the label. Discount is always calculated on the Marked Price to arrive at the Selling Price.

Markup Percentage

The percentage by which the Marked Price is higher than the Cost Price is known as the markup percentage: Markup% = [(MP − CP) ÷ CP] × 100.

Calculation:

The total number of illiterates in A, B and C is  20 + 14 + 22 = 56%

The total number of illiterates in D is 44%

The required percentage is (56 /44) × 100 = 127.27 %

∴ The correct option is 2

Given:

In a triangle ABC, the three angles are x, y and y + 10°. Also, 2x - 4y = 20°. 

Concept used:

The sum of all sides of a triangle is 180° 

Calculation:

x + y +y + 10° = 180°

⇒ x + 2y = 170° ...... (1)

Again, 2x - 4y = 20°......... (2)

From 1 and 2 we get,

x = 340 + 20 /4

⇒ x = 90°

So it is a right angle triangle.

∴ The correct option is 4

Given:

X , Y and Z can complete a work in 5 days, 15 days and 30 days, respectively.

Concept used:

Efficiency = (Total work / Total time taken)

Efficiency = work done in a single day 

Calculation:

Let total work is 30 units ( Lcm of 5 . 15 and 30 )

The efficiency of X is

⇒ 30 / 5 = 6 unit

Again, the Efficiency of Y is,

⇒ 30 / 15 = 2 unit

Again, the Efficiency of Z  is,

⇒ 30 / 30 = 1 unit

Total Efficiency,

⇒ 6 + 2 + 1= 9 unit

Efficiency of Y + Z = 3 units

Total work done in 1^st, and 3^rd  day

⇒ 2 ×( 9+3) = 24 units

Y + Z  together does in 2^nd and 4 th day is, 3 × 2 = 6 units

The number of days required is 2 + 2 = 4 days

∴ The correct option is 2

Given: 

Sita sold a whiteboard marker set at 10% profit. On selling it for Rs. 20 more, she would have earned a profit of 15%. 

Concept used:

SP = CP + profit

Profit is calculated on cost price

Calculation:

Let the Cost price = 100

1^st selling price is 110

2^nd selling price is 115

As per the question,

Value of (115 -110) = 5 units 

5 units = 20

1 unit = 4

The value of 100 units = 4 × 100 = 400

∴ The correct option is 4

Given:

Abraham can complete a work in 9 days, while Andrew can complete the same work in 6 days.

Concept used:

Efficiency = (Total work / Total time taken)

Efficiency = work done in a single day 

Calculation:

Let total work is 18 units ( Lcm of 6 and9 )

The efficiency of Abraham is

⇒ 18 / 6 = 3 unit

Again, the Efficiency of Andrew  is,

⇒ 18 / 9 = 2 unit

Total Efficiency,

⇒ 3 + 2  = 5 unit

The number of days required is,

⇒ 18 /5 = $3{3 \over 5}$ days

∴ The correct option is 2

Given:

A cyclist rides 20 km in 120 minutes and rides another 25 km in 150 minutes.

Concept used:

Average speed = Total distance / Total time

Calculation:

Total distance is 20 + 25 = 45 km

Total time is 150 + 120 = 270 minutes

270 minutes = 4 hr and 30 minutes 

Average speed is  45 /4.5 = 10 km/h

∴ The correct option is 3

Given:

 $(x+\frac{1}{x})$ = √6 and x > 1

Formula used:

(a + 1/a) = k ; then (a² + 1/a²) = k² - 2

(a² - b²) = (a + b)(a - b)

(a - b)² = (a + b)² - 4ab

Calculation:

$(x+\frac{1}{x})$ = √6

⇒ (x2 + 1/x2) = (√6)² - 2 = 6 - 2 = 4

⇒ (x4 + 1/x4) = (4)² - 2 = 14

Again,

(x - 1/x)² = (√6)² - 4 = 6 - 4 = 2

So, (x - 1/x) = √2

Now,

(x2 - 1/x2) = (x + 1/x) (x - 1/x) = √6 × √2 = √12 = 2√3

(x4 - 1/x4)= (x2 + 1/x2) (x2 - 1/x2) = 4 × 2√3 = 8√3

Now,

(x8 - 1/x8) =(x4 + 1/x4) ×(x4 - 1/x4)

⇒  8√3 × 14 

= 112√3

∴ The correct option is (3).

Given:-

 A father gives 8% of his monthly income to both his sons as pocket money 

The elder son gets 85% of the total amount given to both sons.

He spends 90% of the amount and saves Rs. 17. 

Calculation:- 

Let 100M represent the monthly income of the father. 

Then part of the salary was given to the two sons as pocket money 

⇒ 100M × 8/100 = 8M.

Now The elder son gets 85% of the total amount given to both sons.

 ⇒ (8M × 85)/100 ....... (1)

The second part of the question, 

The elder son spends 90% of the amount and saves Rs. 17.

which means  

⇒ Elder son pocket money × 10% = 17  

⇒ Elder son pocket money = 170Rs

Comparing the Elder son's pocket money from the equation,  

⇒ (8M × 85)/100 = 170  

⇒ M = 200/8 

The monthly income of the father. = 100M = (200/8) × 100 = 2500 "

∴ The required answer is 2500.

Given:- 

Old Value (2017) = 20 (in 1000 tonnes)

New Value (2019) = 65 (in 1000 tonnes) 

Formula used:-

Percentage Increase = [(New Value - Old Value) / Old Value] ×  100%

Calculation:-  

Percentage Increase = [(65 - 20) / 20] × 100%

Percentage Increase = (45 / 20) × 100% = 225%

∴ The production of maize in 2019 increased by 225% compared to that in 2017.

Given:-

The side of the cube is 12 cm,

Formula used:-

Total surface area = 6 × (side)² 

Calculation:-

The surface area of one face = side × side 

⇒ 12 cm × 12 cm = 144 cm²

Since there are six faces on a cube,

Total surface area = 6 × surface area of one face

 ⇒ 6 × 144 cm² = 864 cm² 

∴ The required answer is 864 square centimeters.

Given:-

b = 5

Formula used:-

A³ + B³ =(A + B) (A² + B² - AB)

Calculation:-

(5/b + 5b)(25/b² - 25 +25b²) 

⇒ (5/b)³ + (5b)³ 

Put the value of "b" in the above equation

⇒ (5/5)³ + (5 × 5)³ 

⇒ 1 + (25)³  

⇒ 1 + 15625 = 15626    

∴ The required answer is 15626.

Given:-

x - 1/x = 10

Formula used:- 

A² -B² = (A + B) (A - B)

(A + B)² = A² + B² + 2AB

Calculation:- 

⇒ x - 1/x = 10  .....(1)

Square both sides

⇒ (x -1/x)² = 10²  

⇒ x² + 1/x² - 2 = 100 

⇒ x2 + 1/x2  = 102  .....(2)

Add 2 both sides

⇒ x2 + 1/x2  + 2 = 102 + 2 

⇒ (x + 1/x )²  = 104 

⇒ (x + 1/x ) = √ 104 .....(3)

As per the question, 

⇒ x⁴ - 1/x⁴

⇒(x² - 1/x²)(x² + 1/x²)  

⇒ (x + 1/x) (x -1/x) (x2 + 1/x2)

Put the value of (x -1/x),  (x -1/x) (x2 + 1/x2) from equation(1,2&3) 

⇒ 10 × √104 × 102 = 1020√104  

∴ The required answer is 1020√104.

Given:

Efficiency of A = Efficiency of B

Efficiency of C = Efficiency of A

Formula used:

Total work = efficiency × time

Calculation:

According to the question:

Efficiency of A = efficiency of B = efficiency of C

A, B and C can finish a work in 15 days working alternately.

⇒ 3 days = (1 + 1 + 1) = 3 units of work

⇒ 3 × 5 = 15 days = 3 × 5 = 15 units of work

Now, C,A and B can do the work alternately then,

⇒ (1 + 1 + 1) = 3 units of work = 3 days

⇒ 3 × 5 = 15 units of work = 3 × 5 = 15 days 

∴ The correct answer is 15 days.

The correct answer is "a honest."

Key Points

• The indefinite article "a" is used before words that begin with a consonant sound, while "an" is used before words that begin with a vowel sound.
• "Honest" starts with a silent 'h,' which makes the initial sound a vowel sound. Therefore, the correct article to use is "an" rather than "a."
• Therefore, the sentence should read: "My mother is an honest and well-known woman in society."
• Hence, the correct answer is "Option 3".

Additional Information

• "In the society" is correct as it locates the mother's standing within a specific community.
• "My mother" is correctly used as the subject of the sentence.
• "And well-known woman" is grammatically correct.

The correct order is: CDBA.

Key Points

• Sentence C, "which comes but rarely in history," naturally follows the opening line S1, "A moment comes," because it describes the type of moment being referred to.
• Sentence D, "when we step out from the old to the new, when an age ends," expands on the rarity and significance of such a moment.
• Sentence B further describes the moment as being significant to the soul of a nation, which follows nicely from the idea of a historical transition.
• Sentence A then qualifies the nation’s soul as being “long suppressed” which complements the previous sentence and leads logically into the final sentence S6.

Therefore the correct answer is "Option 2".

Additional Information

• The order of sentences in a paragraph should create a logical sequence that builds up to the main point or conclusion, as reflected in the first and last sentences.

The correct answer is "Manisha got overwhelmed by the tremendous offer by a company to work in collaboration with internet personnel."

Key Points

• All the words in sentence 2 are spelled correctly. "Tremendous" means very great in amount, scale, or intensity; "personnel" refers to the people employed in an organization.
• The term "internet personnel" correctly describes individuals who work within the digital/online sector of a company.

Therefore, the correct answer is "Option 2".

Additional Information

• Sentence 1 contains "tremendus," which is a misspelling of "tremendous."
• Sentence 3 includes "collaborasion," which should be spelled as "collaboration."
• Sentence 4 uses "personnal," which is a misspelling of "personnel."

The correct answer is "In trouble."

Key Points

• The idiom "in a soup" is used to indicate that someone is in a difficult situation or "in trouble."
• An example of using "in a soup" correctly is, "After losing his job and his wallet in the same week, he really was in a soup."
• It implies being in a state of confusion or a problematic circumstance from which it is hard to extricate oneself.

Therefore, the correct answer is "Option 4".

Additional Information

• "Extremely short of money" is more commonly expressed as "in a pinch" or "strapped for cash."
• "To exhibit cowardice" does not relate to the idiom "in a soup."
• "To get nothing" is not a meaning associated with this idiom.

The correct antonym is: Rebuked.

Key Points

• The word "praised" implies that they expressed approval or admiration for her bravery. (प्रशंसा)
• "Rebuked" means to express sharp disapproval or criticism of someone because of their behavior or actions, making it the opposite of praise. (झिड़की)
• An example of using "rebuked" correctly is, "The teacher rebuked the student for his constant tardiness to class."

​Therefore, the correct answer is "Option 2".

Additional Information

• "Acclaimed" means praised enthusiastically and publicly, which is a synonym of "praised."  (प्रशंसित)
• ​For example: The artist was acclaimed for her innovative use of materials.
• "Defended" means to protect from harm or danger, which is not the opposite of praise.  (बचाव किया)
• ​For example: In the debate, he defended his views passionately.
• "Assaulted" refers to making a physical attack, which is not an antonym in the context of verbal or written approval.  (हमला किया)
• ​For example: The report showed that the victim was assaulted during the robbery.

The correct answer is "Unplanned."

Key Points

• The word "intentional" means something that is done on purpose or with intention. Therefore, the antonym of "intentional" should be a word that indicates a lack of planning or purpose. (जान-बूझकर)
• The word "unplanned" directly states that something was not done with intent or forethought, making it the opposite of "intentional." (अनायोजित)
• ​For example, "The meeting seemed casual, but every topic discussed was part of an intentional agenda, unlike the unplanned gatherings where subjects arise spontaneously."

Therefore, the correct answer is "Option 2".

Additional Information

• "Cordial" relates to warmth and friendliness and does not address the concept of intention. (सौहार्दपूर्ण)
• ​For example: They had a cordial meeting and agreed on most topics.
• "Amiable" also refers to friendliness and a pleasant manner. (सौम्य)
• ​For example: Her amiable nature made her popular among her peers.
• "Inanimate" describes an object that is not alive and does not have the capacity for intentional action. (निर्जीव)
• ​For example: The inanimate statue stood tall in the town square.