SSC GD Constable Previous Year Paper (Held on: 11th February 2019 Shift 2)

The mirror image of the given figure when mirror is placed at right side is,

Hence, option 2 is the correct answer.

Athletics are played in the stadium.

Similarly,

Skating is played in a Rink. A rink is an enclosed area of ice for skating, ice hockey, or curling.

Track:

Track and field is a sport that includes athletic contests based on running, jumping, and throwing skills. Track events include sprint, middle distance, hurdle and steeplechase events.

Court:

Badminton and Basketball are played on Court. Badminton is often played as a casual outdoor activity in a yard or on a beach; formal games are played on a rectangular indoor court.

Hence, “Rink” is the correct answer.

Arranging them according to the given information,

Akbar is to the left of the person sitting in the middle, but to the right of Sekar.

Prakash is to the right of Deva, and Ram is to the right of Prakash.

Ram is second from the person sitting in the middle.

Deva is sitting in the middle.

Hence, “Deva” is the correct answer.

Volume, Height and Weight are geometrical measurements.

Whereas, Small  is of a size that is less than normal or usual.

Hence, “small” is the odd one.

The pattern followed is,

Similarly,

Hence, “TIDQUUV” is the correct answer.

The pattern followed is,

Similarly,

Hence, “HLP” is the correct answer.

The pattern followed is,

3¹ = 3

3²= 9

3³ = 27

3⁴ = 81

3⁵ = 243

3⁶ = 729

3⁷ = 2187

Both the bracketed numbers are correct.

Hence, option 2 is the correct answer.

Option 1 → Eagle stays in an eyrie, not swoop.

Option 2 → Pig stays in a sty.

Option 3 → King stays in a palace.

Option 4 → Bird stays in a nest.

Hence, “Eagle: Swoop” is the odd pair.

The pattern followed is,

For, $\frac{5}{6}:121$

5 + 6 = 11

11² = 121

Similarly,

For $\frac{8}{9};:$ _____

8 + 9 = 17

17² = 289

‘289’ is related to the third term in the same way as the second term is related to the first term.

Hence, “289” is the correct answer.

The pattern followed is,

The line with the arrow mark moves anti clockwise by two places in from the first figure to the second figure, three places from second figure to the third figure, four places from third figure to fourth figure and five places from fourth figure to fifth figure.

The figure which will come next in the pattern is,

Hence, option 1 is the correct answer.

Hindi and Malayalam are languages.

The correct Venn diagram is,

Hence, option 3 is the correct answer.

Arranging them according to the given information,

V is the last one to reach.

Y reaches immediately before T but does not immediately follow W.

X immediately follows T and is subsequently followed by Z.

W reaches before T.

‘U’ is the second to reach the factory.

Hence, “U” is the correct answer.

The least possible Venn diagram is,

Conclusion I: No cat is a cow → False (This is possible but not definite)

Conclusion II: Some cows are monkeys → False (This is definitely false)

Hence, “neither conclusion I nor conclusion II” follows.

The pattern followed is,

Hence, “29” is the correct answer.

The pattern which will appear when the transparent sheet is folded along the dotted line is,

Hence, option 4 is the correct answer.

The pattern followed is,

Option 1 → E and V are letters in the opposite position.

Option 2 → K and P are letters in the opposite position.

Option 3 → D and X are not letters in the opposite position.

Option 4 → H and S are letters in the opposite position.

All follow the same pattern, except ‘DX’.

Hence, “DX” is the odd one.

The given figure is embedded in,

Hence, option 4 is the correct answer.

The pattern followed is,

For B = 3,

The place value of B is 2, 2 + 1 = 3

For H = 9,

The place value of H is 8, 8 + 1 = 9

Similarly,

For SCHOOL,

The place value of S is 19, 19 + 1 = 20

The place value of C is 3, 3 + 1 = 4

The place value of H is 8, 8 + 1 = 9

The place value of O is 15, 15 + 1 = 16

The place value of O is 15, 15 + 1 = 16

The place value of L is 12, 12 + 1 = 13

SCHOOL = 20 + 4 + 9 + 16 + 16 + 13 = 78

Hence, “78” is the correct answer.

The least possible Venn diagram is,

Conclusion I: All papers are papaya → True (This is definitely true)

Conclusion II: Some papayas are papers → True (This is definitely true)

Hence, “both conclusions I and II” follow.

Interchanging the signs and using BODMAS rule,

Option 1 → + and ÷

The original equation is,

20 ÷ 20 + 20 − 20 × 20 = 20

Interchanging the signs,

L.H.S = 20 + 20 ÷ 20 − 20 × 20 = 20 + 1 – 20 × 20 = 20 + 1 – 400 = -379 ≠ R.H.S

Option 2 → + and -

The original equation is,

20 ÷ 20 + 20 − 20 × 20 = 20

Interchanging the signs,

L.H.S = 20 ÷ 20 – 20 + 20 × 20 = 1 – 20 + 400 = 381 ≠ R.H.S

Option 3 → ÷ and ×

The original equation is,

20 ÷ 20 + 20 − 20 × 20 = 20

Interchanging the signs,

L.H.S = 20 × 20 + 20 − 20 ÷ 20 = 400 + 20 – 1 = 419 ≠ R.H.S

Option 4 → + and ×

The original equation is,

20 ÷ 20 + 20 − 20 × 20 = 20

Interchanging the signs,

L.H.S = 20 ÷ 20 × 20 – 20 + 20 = 20 – 20 + 20 = 20 = R.H.S

Hence, option 4 is the correct answer.

625 is 5⁴, 125 is 5³ and 25 is 5².

Whereas,

115 is not a power of 5.

Hence, “115” is different from the rest.

The pattern followed is,

The alphabets are arranged with a one letter gap between them and the number of alphabets written keeps on increasing.

Hence, “uvwxyz” is the correct answer.

The pattern followed is,

Hence, “40” is the correct answer.

1. A, F, C, D, E, B → False (He visit B before D)

2. C, E, A, B, D, F → False (The third hospital he visits must be C)

3. C, F, A, E, D, B → False (The third hospital he visits must be C)

4. A, B, C, D, E, F → True (This is the only order that fulfil all conditions)

The correct order is ‘A, B, C, D, E, F’ is the correct answer.

Hence, option 4 is the correct answer.

The figure which will complete the given pattern is,

Hence, option 2 is the correct answer.

The correct answer is Village Committee.

Key Points

• The Balwant Rai Mehta Committee was a committee originally appointed by the Government of India to examine the working of the Community Development Programme and the National Extension Service.
• The committee was formed on 16^th January 1957.
• Balwant Rai Mehta was the Chairman of this committee.
• The establishment of a 3-tier Panchayati Raj system is one of the main recommendations of this committee.
• The 3-tier system recommended by this committee is:

1. Gram Panchayat at the village level.
2. Panchayat Samiti at the block level.
3. Zila Parishad at the district level.

Additional Information

Other important recommendations of the Balwant Rai Mehta Committee are:

• The Panchayat Samiti should be the executive body while the Zila Parishad should be the advisory, coordinating, and supervisory body.
• The District Collector should be the Chairman of the Zila Parishad.

The correct answer is option 3 i.e Waterloo.

• Napoleon Bonaparte was the Emperor of the French.
• He ruled France twice.
• The first reign was from 1804 to 1814.
• The second reign was in 1815.
• He led many successful campaigns during the French Revolutionary Wars.
• Napoleon Bonaparte is considered one of the greatest commanders in history.
• He fought more than 70 battles, losing only seven, mostly at the end.
• Important Battles won by Napoleon Bonaparte are:
• Battle of Montenotte
• Battle of Ceva.
• Battle of Lodi.
• Battle of Borghetto.
• Battle of Mount Tabor.
• Battle of Borodino.
• Battle of Arcole in 1796
• Battle of Jena in 1806
• Battle of Ligny in 1815.
• Napoleon was defeated in the Battle of Waterloo.
• The Battle of Waterloo was fought in 1815 in Belgium.
• Battle fought between Napoleon's French Army and a coalition led by the Duke of Wellington and Marshal Blücher.
• Battle of Waterloo resulted in:

1. End of the Seventh Coalition.
2. Final defeat of Napoleon.
3. End of the Napoleonic Wars.

The correct answer is the Chilika lake*.*

• Chilika lake is the largest backwater lake in Odisha.
• Chilika lake is at the mouth of the Daya river.
• Chilika lake is named 'Destination Flyways' by the World Tourism Organisation.
• The only lake in India included in 'Destination Flyways'
• Listed as a tentative UNESCO World Heritage Site.
• Chilika Lake is the largest wintering ground for migratory birds on the Indian sub-continent.
• The first Indian wetland of international importance under the Ramsar Convention.
• ​Wular Lake is one of the largest freshwater lakes in Asia. 
• Located at Kashmir Valley.
• Formed due to the tectonic activity.
• Dal lake is in Srinagar, Jammu and Kashmir
• The lake is known as Srinagar's Jewel.
• The second-largest lake in the union territory of Jammu and Kashmir.
• Pulicat Lake is located at Coromandel Coast, Andhra Pradesh–Tamil Nadu border.
• Second largest brackish water lagoon in India.

The correct answer is the hummingbird.

Key Points

• Hummingbirds are birds commonly seen in the Americas.
• The biological family of the hummingbird is Trochilidae.
• Hummingbirds are the smallest living bird.
• The length of a hummingbird is 7.5–13 cm.
• The name 'hummingbird' came from the humming sound created by their beating wings.
• They have the highest mass-specific metabolic rate of any homeothermic animal.
• Male hummingbirds do not take part in nesting.
• Canary is the bird named after Spain's Canary Islands.
• House sparrow is a bird of the sparrow family Passeridae.

The correct answer is option 3 i.e 2016.

• In India, currency notes of ₹ 500 and ₹ 1,000 were declared invalid in 2016.
• The Government of India announced the demonetisation on 8 November 2016.
• Government-issued new ₹500 and ₹2,000 currency notes soon after the demonetisation.
• The newly redesigned series of banknotes ₹500 and ₹2,000 were in circulation since 10 November 2016.
• The demonetisation currency notes of ₹ 500 and ₹ 1,000 were announced by Prime Minister Narendra Modi.
• It aims to reduce the use of illicit and counterfeit cash to fund illegal activity and terrorism.
• India currently being issued in the denomination of Rs 10, Rs 20, Rs 50, Rs 100, Rs 200, Rs 500 and Rs 2000.
• The issuance of the currency is controlled by the Reserve Bank of India.

The correct answer is option 1 i.e 2005.

• The National Rural Employment Guarantee Act was renamed as Mahatma Gandhi National Rural Employment Guarantee Act.
• It is a labour law in India and social security measure to guarantee the right to work.
• The act Providing at least 100 days of wage employment in a financial year.
• Implemented mainly by gram panchayats.
• The act was first proposed in 1991 by P.V. Narasimha Rao.
• The act was passed in 2005.
• The act was passed under Dr. Manmohan Singh government.

The correct answer is Amoeba.

• Amoeba is a unicellular organism that has the ability to alter its shape.
• Grouped under the Kingdom Protista.
• Commonly found in water bodies like ponds and lakes.
• Based on records amoeboid organism was produced in 1755 by August Johann Rösel von Rosenhof.
• The structure of Amoeba consists of cytoplasm, plasma membrane, and nucleus.
• Locomotion is possible through pseudopodia.
• Amoeba reproduces through asexual means, such as binary fission.
• Amoeba follows holozoic nutrition.

• Cat, humans, and horses are multicellular animals.

The correct answer is option 4 i.e 1950.

Key Points

• The Planning Commission was an institution which formulated Five-Year Plans in India.
• Planning Commission set up in 1950.
• Planning commission was established based on the recommendation of an advisory planning board under the chairmanship of KC Neogy.
• Headquarters: Yojana Bhavan, New Delhi.
• Planning commission is only an advisory body.
• The concept of planning was based on the Russian model introduced by Joseph Stalin.
• The Prime Minister is the chairman of the planning commission.
• Jawaharlal Nehru was the first chairman of the planning commission.
• Deputy chairman of the planning commission was appointed by the Union Cabinet.
• Gulzarilal Nanda was the first deputy Chairman of the Planning Commission.
• Narendra Modi government dissolved the Planning Commission in 2014.
• The planning commission was replaced by the newly formed NITI Aayog in 2015.

The correct answer is option 4 i.e Avani Chaturvedi.

• Flight Lieutenant Avani Chaturvedi is an Indian pilot.
• She is from Rewa district, Madhya Pradesh.
• Avani Chaturvedi is a part of Indian Air Force No. 23 Squadron Panthers in Suratgarh, Rajasthan.
• She is the first lady Indian Air Force officer to fly MIG 21.
• She was declared as the first combat pilot along with Mohana Singh Jitarwal, and Bhawana Kanth in 2018.
• She was promoted to the rank of Flight Lieutenant in 2018.
• She is honored with the Nari Shakti Puraskar in 2020.
• Anjali Gupta was the first female officer in India and in the Air Force to be court-martialled.

The correct answer is option 2 i.e Diamond.

• Diamond is an allotrope of carbon.
• Diamond is a crystalline carbon.
• Diamond is the hardest naturally occurring substance found on Earth.
• The hardness of diamond is 10 Mohs.
• Diamond has been used as decorative items since ancient times.
• The refractive index of diamond is 2.42.
• There is only one industrial-scale diamond mine in India located at Panna, Madhya Pradesh.
• Coal is an amorphous carbon.
• Diesel oil is produced by the hydrogenation of coal.
• Iron is a chemical element with atomic number 26.
• When iron rusts, its weight increases.
• The purest form of Iron is called Wrought Iron.
• The impure iron is called Pig Iron.
• Silver is a chemical element with atomic number 47.
• Silver has the highest electrical conductivity of all metals.

The correct answer is option 4 i.e Sourav Ganguly.

Key Points

• Sourav Ganguly is a former national cricket team captain in India.
• He served as the president of the Board of Control for Cricket in India.
• Nickname: God of the Off Side, Dada.
• He led India into the 2003 World Cup final.
• The third batsman in history to cross the 10,000 run landmark.
• The only cricketer to win four consecutive man of the match awards in One Day Internationals.
• Autobiographical book: A Century is Not Enough.

Additional Information

• Books Written By Famous Cricket Players

The correct answer is option 1 i.e O negative.

• A blood group is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the red blood cells.
• Blood groups were discovered by Karl Landsteiner.
• The most important blood group systems are ABO and Rh.
• There are 4 main blood groups namely A group, B group, AB group, and O group.
• A person with the blood group O negative is considered to be a universal donor.
• A person with the blood group AB positive is considered to be a universal recipient.
• Blood group without antigens: O group.
• Blood group without antibody: AB group.
• Most common blood group: O positive.
• Rarest blood group: AB negative.
• World blood donation day: June 14.
• National (in India) blood donation day: October 1.

The correct answer is option 4 i.e Gujarat*.*

• The length of the coastline in India is 7516.6 km.

• Out of 7516.6 km, Mainland consists of 5422.6 km and Island Territories consists of 2094 km.

• Gujarat has the largest coastline in India.

• Andra Pradesh has the longest coastline in South India.

• Gujarat is a state on the western coast of India with a coastline of 1,600 km.

• Capital city: Gandhinagar.

• Kandla is the major seaport of Gujarat.

• The Sabarmati is the largest river in Gujarat

• The famous Indus Valley Civilisation, such as Lothal, Dholavira, and Gola Dhoro are located in Gujarat.

• Gir Forest National Park, only Asiatic lion park in the world, is in Gujarat.

• Alang ship breaking yard is in Gujarat.

The correct answer is option 2 i.e 1787.

• The Constitution of the United States is the supreme law of the United States of America.
• The United States of America adopted a democratic constitution in 1787.
• Constitution of America came into force in 1789.
• 'We the People' are the first three words of the American constitution.
• American constitution has been amended 27 times.
• The first ten amendments are collectively known as the Bill of Rights.
• The Continental Congress functioned as the provisional government of the United States From 1774 to 1781.
• Important features of the American constitution are:
• Judicial review
• Preamble
• Fundamental Rights
• Impeachment

The correct answer is Sardar Vallabhbhai Patel.

Key Points

• The Statue of Unity in India is the world’s tallest statue of Sardar Vallabhbhai Patel.
• Located at Narmada Valley Kevadiya colony, Gujarat.
• Designed by Indian sculptor Ram V. Sutar.
• Constructed by Larsen & Toubro.
• Constructed on a river island named Sadhu Bet.
• Inaugurated on 31 October 2018.
• Inaugurated by Indian Prime Minister Narendra Modi.

Important Points

• Sardar Vallabhbhai Patel was the first Deputy Prime Minister of India.
• He was often called Sardar.
• He was also called an Indian Bismarck.
• Served as the first Home Minister of India.
• He was appointed as the President of the Indian National Congress during the Karachi session in 1931.

Additional Information

The correct answer is Alluvial.

Key Points

• Mahanadi and Godavari River Deltas are a basin of the deposit that drains a large landmass into the Bay of Bengal.
• The deltas of the Mahanadi and the Godavari are rich in alluvial soils.
• The upper part of the Mahanadi delta plain is heavily populated.
• Alluvial soil is the most extensive soil type in India.
• It covers about 43% of the total area in India.
• Alluvial soils divided into the Khadar (new alluvium) and the Bhangar (old alluvium).
• Light grey to Ash grey in colour.
• Alluvial soils are rich in potash and poor in nitrogen and organic matter.

Additional Information

The correct answer is option 3 i.e Manushi Chillar.

• Manushi Chhillar is an Indian actress and model.
• She won the Miss World 2017 pageant.
• She is from Haryana, India.
• Manushi Chhillar is the sixth person from India to win the Miss World pageant.
• Miss World 2017 was held in China.
• Reita Faria is the first Indian to win the Miss World pageant.
• Former Miss World from India are:

1. Reita Faria in 1966.
2. Aishwarya Rai in 1994.
3. Diana Hayden in 1997.
4. Yukta Mukhi in 1999.
5. Priyanka Chopra 2000.

• Miss World Of 2018: Vanessa Ponce de León.
• Miss World Of 2019: Toni Ann Singh.
• Lara Dutta is an Indian actress who won the Miss Universe 2000 pageant.
• Anukreethy Vas is an Indian model who was crowned Femina Miss India 2018.

The correct answer is option 4 i.e India Gate.

Key Points

• The India Gate is a war memorial located in New Delhi.
• India Gate was constructed as a memorial to 70,000 soldiers of the British Indian Army who died during the First World War.
• Established on 10 February 1921.
• Inaugurated on 12 February 1931.
• Inaugurated by Lord Irwin.
• India Gate was designed by Sir Edwin Lutyens.
• India Gate is often compared to the Arc de Triomphe in Paris and the Gateway of India in Mumbai.
• Amar Jawan Jyoti erected under the India gate to commemorate Indian soldiers martyred in the Bangladesh liberation war in 1971.

The correct answer is Kapil Dev.

Key Points

• Kapil Dev is a former Indian cricketer.
• Nickname: The Haryana Hurricane.
• One of the greatest all-rounders in Indian cricket.
• He led the Indian cricket team that won the 1983 Cricket World Cup.
• The first player to take 200 One Day International wickets.
• He joined the Indian Territorial Army as a Lieutenant Colonel in 2008.
• Notable works:
• By God's Decree.
• Cricket My Style.
• Straight from the Heart.
• We, The Sikhs.

Additional Information

• Books authored by Sachin Tendulkar are Chase Your Dreams: My Autobiography and Playing It My Way.
• Books authored by Sourav Ganguly is A Century Is Not Enough.
• M.S. Dhoni: The Untold Story is a biographical sports film based on the life of Mahendra Singh Dhoni.

The correct answer is option 4 i.e New Zealand.

• Universal suffrage gives the right to vote to all adult citizens.
• New Zealand is the first country in the world to grant active universal suffrage by giving women the right to vote (not to stand).
• British Governor of New Zealand, Lord Glasgow, gave assent to a new electoral act in 1893.
• Australia became the first country in the world to give most women the right to vote and the right to stand for the Commonwealth Parliament in 2002.
• India agreed to the principle of universal suffrage in 1947.
• New Zealand is an island country in the southwestern Pacific Ocean.
• Capital: Wellington.
• New Zealand gained full statutory independence from the British Empire in 1947.
• Current Monarch: Charles III.
• Current Governor-General: Cindy Kiro.
• Current Prime Minister: Christopher Luxon.
• Currency: New Zealand dollar.

The correct answer is option 1 i.e Kathak.

• Kathak is an Indian classical dance.
• Kathak is representing a unique synthesis of Hindu and Muslim geniusin art.
• Origin is in Uttar Pradesh & Rajasthan.
• The term Kathak is derived from the Vedic Sanskrit word 'Katha' which means the art of storytelling.
• Lucknow and Jaipur are the famous Kathak centres in India.
• Famous Exponents: Sambhu Maharaj, Birju Maharaj, Lacchu Maharaj, Sitara Devi.

The correct answer is Thigmonasty.

• The plants cannot move from one place to another because the roots are fixed at the ground.

• Plants can move their individual parts without moving the entire body.

• The two types of plant movements are tropic movement and nastic movement.

• Thigmonasty is the nastic response of a plant due to touch or vibration.

• The directional growth movement in plants due to touch is called thigmonasty.

• Thigmonasty is also known as Seismonasty.

• Mimosa pudica is the best example of a thigmonasty exhibiting plant.

• Geotropism is the growth of the parts of plants in response to the force of gravity.

• The roots of a plant growing down into the ground is an example of geotropism.

• The upward growth of plant parts, against gravity, is called negative geotropism.

• The downward growth of roots is called positive geotropism.

• Phototropism is the growth of a plant in response to a light stimulus.

• If the plant grows towards the light source, it is called positive phototropism.

• If the plant grows away from the light source, it is called negative phototropism.

• Chemotropism is the growth of a plant navigated by chemical stimulus from outside.

• If the growth response is towards the stimulus it is called positive chemotropism.

• If the growth response is away from the stimulus it is called negative chemotropism.

The correct answer is Sepoy Mutiny 1857.

Important Points

• Begum Hazrat Mahal was the second wife of Nawab Wajid Ali Shah.
• Begum Hazrat Mahal is associated with Sepoy Mutiny 1857.
• She led the revolt against the British East India Company during the Indian Rebellion of 1857.
• Hazrat Mahal worked in association with Nana Saheb and Maulavi of Faizabad.
• She was the leader of the 1857 revolt in Lucknow, Agra, and Awadh.
• Begum Hazrat Mahal's tomb is located in Kathmandu, Nepal.

Additional Information

• The Moplah Revolt 1921 is also called the Malabar Rebellion.
• It was communal violence between Hindus and Muslims.
• Thirurangadi is the centre of the Malabar rebellion.
• Pookottur incident is the main reason behind the Malabar rebellion.
• Paika Revolt 1817 took place in Odisha against the British.
• Leader: Bakshi Jagabandhu.

The correct answer is Mohammad Ghori.

Key Points

• The Battle of Tarain was between the Ghurids against the Chahamanas.
• The Ghurids were led by Mohammad Ghori.
• The Chahamanas were led by Prithvi Raj Chauhan.
• Two Battles happened as a part of the Battle of Tarain.
• Location: Taraori near Karnal.
• The First Battle of Tarain was fought in 1191.
• The Chahamana king Prithiviraj Chauhan defeated Ghurid king Mohammad Ghori in the First Battle of Tarain.
• The Second Battle of Tarain was fought in 1192.
• The Ghurid king Mohammad Ghori defeated the Chahamana king Prithviraj Chauhan in the Second Battle of Tarain.
• Prithvi Raj Chauhan was defeated at the hands of Mohammad Ghori in the battle of Tarain, 1192.
• Prithviraj Chauhan is widely considered the "the last Hindu emperor".

Additional Information

• Harun al-Rashid was the 5^th Caliph of the Abbasid Caliphate.
• Abu Bakr was the 1^st Caliph of the Rashidun Caliphate.
• Umar II was the 8^th Caliph of the Umayyad Caliphate.

The correct answer is option 3 i.e Gold.

• Gold: The Dream That United Our Nation is a Hindi movie based on the Indian hockey team on their first Olympic gold since India became independent.
• The movie was released on 15 August 2018.
• Directed by Reema Kagti.
• Stars famous Bollywood actor Akshay Kumar as Tapan Das (Fictional character).
• Tapan das (Fictional character) is the man who won India its first gold medal in the 1948 Summer Olympics.
• Tapan das is a character inspired by the legendary Indian hockey player Kishan Lal.
• The Indian field hockey team won the country's first gold medal at the 1948 Summer Olympics.
• It was the country's first Olympic gold medal since India became independent.
• 1948 Summer Olympics were held in London, England.
• ​Lagaan is a Hindi movie based on some peasant farmers, playing Cricket match against the British In order to be free from taxes or Lagaan.
• Chak De India is a Hindi-language sports film about the Indian women's national field hockey team which was inspired by the team's win at the 2002 Commonwealth Games.
• M.S. Dhoni: The Untold Story is a biographical sports film based on the life of Indian cricketer Mahendra Singh Dhoni.

Given:

Let the number be x.

Correct value = x/2

Resultant number = 2 × x

Calculations:

According to Question,

Required percentage = Resultant number/Correct value × 100

⇒ Required percentage = [(2x)/(x/2)] × 100

⇒ Required percentage = 400%

Formula used:

Efficiency = 1/Number of days required to complete work

Calculation:

Work done by P and Q in 1 day = 1/105

Work done by Q and R in 1 day = 1/90

Work done by R and P in 1 day = 1/126

Adding all of them together

⇒ 2 × (R + P + Q) = 1/105 + 1/90 + 1/126 = (6 + 7 + 5)/630 = 18/630 = 1/35

⇒ R + P + Q = 1/70

∴ R, P and Q can complete the work in 70 days

Given:

As the given data in bar graph shows the ratio of expenditure to revenue for seven consecutive years

Formula used:

Profit percentage = [(Revenue – Expenditure)/Expenditure] × 100

Calculation:

Since there is no relation between the different years, we can’t compare profit from the ratio of expenditure to revenue.

∴ The data given is not sufficient to answer the question.

Given:

Speed of Mohit from his home to office = 10 m/s

Speed of Mohit from his office to home = x km/hr

Average speed of Mohit for the whole journey = 12 m/s

Concept:

Unit conversion from Km/hr to m/s, then multiply from 5/18.

Unit conversion from m/s to Km/hr, then multiply from 18/5.

Formula used:

Distance = Speed × Time

Average speed = 2 × v₁ × v₂/(v₁ + v₂)

Where v₁ and v₂ are the speeds of journey for equal distance

Calculation:

Average speed of Mohit = 12 × 18/5 Km/hr

Speed of Mohit from his home to office = 10 × 18/5 = 36 Km/hr

⇒ Average speed = 2 × 36 × x/(36 + x)

⇒ 12 × 18/5 = 2 × 36 × x/(36 + x)

⇒ 6 × 18 = 180 × x/(36 + x)

⇒ 6 × (36 + x) = 10x

⇒ 216 = 4x

⇒ x = 54 km/hr

∴ Speed of Mohit from his office to home is 54 km/hr.

Given: 

The perimeter of the circle is equal to the perimeter of the square

And Area of the circle = 1386 cm²

Formula Used:

Perimeter of square = 4 × (side)

Area of Square = (side)²

Area of Circle = πr² 

Perimeter of Circle = 2πr ,where r → radius of circle

Calculation:

Let the side of the square be a and the radius of the circle be r.

⇒ Area of Circle = πr² 

⇒ 1386 = 22/7 × r² 

⇒ 63 = 1/7 × r² 

⇒ r² = 7 × 63

⇒ r = 21 cm

So, Perimeter of Circle = 2 × π × (21) = 132 cm

∵ Perimeter of square = 132 cm

⇒ 4 × (side) = 132 cm

⇒ (side) = 33 cm

Area of Square = (33)² = 1089 cm²

∴ The area of the square is 1089 cm²

Shortcut Trick

P : Q : R = 5 : 3 : 6

Le P be 5x, Q be 3x and R be 6x

Then, (P/Q) ∶ (Q/R) ∶ (R/P) = (5x/3x) ∶ (3x/6x) ∶ (6x/5x)

Let us take the LCM (3, 6, 5) = 30

So, (P/Q) ∶ (Q/R) ∶ (R/P) = (5x/3x) × 30 ∶ (3x/6x) × 30 ∶ (6x/5x) × 30

∴ Required ratio is 50 ∶ 15 ∶ 36

Alternate Method

Given:

P : Q : R = 5 : 3 : 6

Le P be 5x, Q be 3x and R be 6x.

Concept:

If N is divided into a : b, then

First part = N × a/(a + b)

Second part = N × b/(a + b)

Calculations:

The required ratio = P/Q : Q/R : R/P

Multiplying the above ratio with PQR

⇒ Required ratio = P²R : Q²P : R²Q

Putting values of P,Q and R in above ratio, we get

⇒ Required ratio = (5x)²(6x) : (3x)²(5x) : (6x)²(3x)

⇒ Required ratio = (25x²)(6x) : (9x²)(5x): (36x²)(3x)

⇒ Required ratio = (25)(2) : (3)5: (36)

⇒ Required ratio = 50 : 15 : 36

∴ Required ratio is 50 ∶ 15 ∶ 36.

Concept:

Calculations :

Given expression is

⇒ 5/2 of 5 ÷ 4 – 2 of 1/7 ÷ 1/7

⇒ $\frac{5}{2} \times 5; \div 4 - 2 \times \frac{1}{7}; \div ;\left( {\frac{1}{7}} \right)$

⇒ $\frac{{5}}{2} \times \frac{5}{4} - 2 \times \frac{1}{7} \times \left( 7 \right)$

⇒ $\frac{{25}}{2} \times \frac{1}{4} - 2$

⇒ $\frac{{25}}{8} - \frac{{16}}{8}$

⇒ $\frac{9}{8}$

As the given data in the bar graph is the percentage of sugar used in making 7 different varieties of sweets.

Given, the combined weight of sweet S5 and S3 is 300 kg

Also, the percentage of sugar in sweets S5 and sweets S3 is 22% and 16% respectively.

Individual weight of particular variety (like S3 and S5) of sweet is unavailable.

∴ The data given is not sufficient to answer the question.

FORMULA:

Average = Sum of weight/Number of students

CALCULATION:

Suppose, the weight of the teacher = x kg

Average weight of the group = 30 kg

According to Question,

[(24 × 30) + x]/25 = (30 + 2)

[(24 × 30) + x] = 25 × (32)

⇒ x = 80

∴ Weight of the teacher = 80 kg

Given:

Distance covered = 1188 km

Time taken = 22 hours

Concept:

Unit conversion from Km/hr to m/s, then multiply from 5/18.

Unit conversion from m/s to Km/hr, then multiply from 18/5.

Formula used:

Distance = Speed × Time

Calculation:

⇒ Speed of Rohit = 1188/22 × 5/18 = 15 m/s

∴ Speed of Rohit is 15 m/s

Given:

Cost price of one table = Rs. 275

Selling price of 16 tables = Rs. 5060

Formula used:

Profit = Selling price – Cost Price

Profit percentage = (Selling price – Cost price) × 100/Cost Price

Loss = Cost Price – Selling price

Loss percentage = (Cost Price – Selling price) × 100/Cost Price

Calculation:

Selling price of 1 table

⇒ Rs. 5060/16 = Rs. 316.25

Since, C.P. < S.P.

⇒ Profit percentage = {(316.25 – 275) × 100}/275

⇒ Profit percentage = {(41.25) × 100}/275

⇒ Profit percentage = 15%

∴ The Profit percentage is 15%.

Rohan purchased a table at the rate of Rs. 275 per table.

16 table purchased rate

⇒ Rs. 275 × 16 = Rs. 4400

Selling price of 16 table is 5060

Since, C.P. < S.P.

⇒ Profit% = (5060 - 4400) × 100/4400

⇒ 660/44 

⇒ 15%

∴ The Profit percentage is 15%.

GIVEN:

Total number of bags = 30 bags

CONCEPT:

When the product is the same but it’s price is different in different batches, then we calculate the weighted Average.

FORMULA USED:

Average = Sum of all numbers/Total numbers

Weighted Average = Sum of (number of bags × Average cost of bag)/Total numbers of Bags

CALCULATION:

Average cost of 12 bags = Rs. 1200

⇒ Sum of cost of 12 bags = 1200 × 12 = 14400

Average cost of 8 bags = Rs. 1500

⇒ Sum of cost of 8 bags = 1500 × 8 = 12000

Average cost of 10 bags = Rs. 2100

⇒ Sum of cost of 10 bags = 2100 × 10 = 21000

⇒ Sum of cost of 30 Bags = (14400 + 12000 + 21000) = 47400

⇒ Average cost of all 30 Bags = 47400/30 = Rs. 1580

∴ The average cost of all the bags together is Rs. 1580

Alternate method :

Weighted Average = [(12 × 1200) + (8 × 1500) + (10 × 2100)]/(12 + 8 + 10)

⇒ Average cost of all 30 Bags = (14400 + 12000 + 21000) /(30)

⇒ Average cost of all 30 Bags = 47400/30 = Rs. 1580

∴ The average cost of all the bags together is Rs. 1580

Given:

Marked price of a chair and a table are in the ratio 2 : 3.

Formula used:

Selling price = Marked Price(100 - Discount)/100

Calculation:

Let the discount percentage on table be x.

Ratio of the marked price of a chair and a table = 2 : 3

Marked price of the Chair = Rs 200x

Marked price of the Table = Rs 300x

⇒ Combined price = Rs (200x + 300x) = Rs 500x

Discount = 26%

⇒ Combined selling price = Rs 500x (1 – 26/100) = Rs 370

In 1^st case,

⇒ Selling price of chair = Rs 200x (1 – 20/100) = Rs 160

In 2^nd case,

⇒ Selling price of table = Rs 300x (1 – x/100) = Rs (300 – 3x)

According to Question,

⇒ Combined selling price = Selling price of chair + Selling price of table

⇒ 370 = 160 + (300 – 3x)

⇒ x = 30%

∴ The discount given on the table is 30%.

Shortcut Trick The marked price of a chair and a table are in the ratio 2 : 3

Chair : Table

200 : 300

Total discount = 500 ×$26\over100$ = 130

Discount on the chair = 200 × $20\over100$ = 40

Discount on the table = 130 - 40 = 90

Percentage discount on the table = $90\over300$ × 100 = 30%

∴ The percentage discount on the table is 30%.

Concept used:

Radius and diameter will increase by the same percentage.

So, if the diameter of a circle increases by 15%, then the radius of a circle increases by 15% also

Calculation:

The radius of the circle = r cm

Area of circle = πr²

⇒ New radius of the circle = r × 115/100 = 1.15r

New area of circle = π × 1.15r × 1.15r = 1.3225r²

⇒ Area increased by = 1.3225πr² – πr² = 0.3225πr²

∴ Area increased by (in%) = [0.3225πr²/πr²] × 100 = 32.25%

Shortcut TrickArea increased by = 15 + 15 + (15 × 15)/100

⇒ 30 + 2.25 = 32.25%

Given:

Let Initial number of engineers = x

After 2 years,

Number of engineer after the end of second year = 2 × x = 2x

Required number of engineer = 1024x

Concept:

In this type of question we can use the multiplication factor logic.

Calculation:

According to question,

1024x = 2ⁿ × x

⇒ 2¹⁰x = 2ⁿ × x

⇒ 2¹⁰ = 2ⁿ

⇒ n = 10

Here we see the initial number of engineers takes 10 period cycles each cycle consisting of 2 years.

So, Required number of years = 10 × 2 years

⇒ Number of years = 20 years

∴ The required duration is 20 years.

Given:

A : B = 7 : 8

B : C = 7 : 9

Concept:

If N is divided into a : b, then

First part = N × a/(a + b)

Second part = N × b/(a + b)

Calculation:

A/B = 7/8      ----(i)

Also B/C = 7/9      ----(ii)

Multiply equation (i) and (ii) we get,

⇒ (A/B) × (B/C) = (7/8) × (7/9)

⇒ A/C = 49/72

∵ A : B = 49 : 56

∴ A : B : C = 49 : 56 : 72

 Alternate Method

A : B = 7 : 8 = 49 : 56

B : C = 7 : 9 = 56 : 72

⇒ A : B : C = 49 : 56 : 72

Given:

Principal = Rs. 9800

Simple interest = Rs. 4704

Time = 6 years

Formula used:

Simple interest (SI) = Principal (P) × Rate (r) × Time (T)/100

SI = P.R.T/100

Where, T is in years

Calculation:

4704 = 9800 × R × 6/100

⇒ R = 4704/588

∴ R = 8%

Follow BODMAS rule to solve this question, as per the order given below.

Step - 1: Parts of an equation enclosed in 'Brackets' must be solved first, and following BODMAS rule in the bracket.

Step - 2: Any mathematical 'Of' or 'Exponent' must be solved next.

Step - 3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated.

Step - 4: Last but not the least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

Given expression is

⇒ ${7{\frac{1}{4}}}; + ;\left[ {6; + ;\left( {5 - 8 \div 4} \right) - 1} \right]$

⇒ ${7{\frac{1}{4}}} + \left[ {6 + \left( {5 - 2} \right) - 1} \right]$

⇒ ${7{\frac{1}{4}}} + \left[ {6 + \left( 3 \right) - 1} \right]$

⇒ ${7{\frac{1}{4}}} + \left[ 8 \right]$

⇒ $\frac{{29}}{4} + \frac{{32}}{4}$

⇒ $\frac{{61}}{4}$

Given:

Cost price = Rs. 2150

Selling price = Rs. 1333

Formula used:

Profit = Selling price – Cost Price

Profit percentage = (Selling price – Cost price) × 100/Cost Price

Loss = Cost Price – Selling price

Loss percentage = (Cost Price – Selling price) × 100/Cost Price

Calculation:

Since, C.P. > S.P.

⇒ Loss percentage = (2150 – 1333) × 100/2150

⇒ Loss percentage = (817) × 100/2150

⇒ Loss percentage = 38%

∴ The loss percentage is 38%.

Shortcut Trick

The LCM of any two numbers must always be a multiple of their HCF.

Divide the given options by the HCF (8) to check for exact divisibility.

Options 72, 24, and 48 are completely divisible by 8.

68 is not exactly divisible by 8.

∴ The correct answer is 68.

Alternate Method

Given:

The Highest Common Factor (HCF) of two numbers = 8

Concept Used:

Let the two numbers be 8x and 8y, where x and y are co-prime to each other.

The Least Common Multiple (LCM) of these numbers will be 8xy.

This shows that the LCM must always be an exact multiple of the HCF.

Calculations:

⇒ Let's check 72: 72 ÷ 8 = 9 (Exact multiple)

⇒ Let's check 24: 24 ÷ 8 = 3 (Exact multiple)

⇒ Let's check 68: 68 ÷ 8 = 8.5 (Not an exact multiple)

⇒ Let's check 48: 48 ÷ 8 = 6 (Exact multiple)

⇒ Since 68 leaves a remainder when divided by 8, it cannot be the LCM of the two numbers.

∴ The correct answer is 68.

Additional Information

Product of Two Numbers

The product of any two numbers is always equal to the product of their HCF and LCM (Product = HCF × LCM).

Co-prime Numbers

Two numbers are co-prime if their HCF is 1. The LCM of two co-prime numbers is exactly their product.

HCF and LCM of Fractions

HCF of fractions = (HCF of Numerators) ÷ (LCM of Denominators)

LCM of fractions = (LCM of Numerators) ÷ (HCF of Denominators)

Given:

Let the side of the square be x

And Perimeter of square = 4x

Formula Used:

Perimeter of square = 4 × (side)

Area of Square = (side)²

Area of Circle = π × (radius)² 

Perimeter of Circle = 2 × π × (radius)

Concept :

If sides increase by 20%. So Perimeter also increases by 20%

Sides become 1.2 times original

So, Perimeter becomes 4 × 1.2 = 1.2 times original

Alternative solution:

Let the side of the square be 100 cm

Side of the square is increased by 20% becomes = 100 + 100 × 20/100

⇒ 120 cm

Perimeter before increase = 4 × 100 = 400 cm

After 20% increased = 4 × 120 = 480 cm

Increase in percentage = [(480 - 400)/400]× 100

⇒ 20%

Mistake PointsPlease attention there asks the Perimeter, not the area, mostly students mark the 44% suppose to the area, but ask the perimeter.

GIVEN:

From the chart

Profit percentage in P5 = 8%

Expenditure = Rs. 46000

FORMULA USED:

Profit percentage = [(Revenue – Expenditure)/Expenditure] × 100

CALCULATION:

Profit percentage = [(Revenue – Expenditure)/Expenditure] × 100

⇒ 8 = [(Revenue – 46000)/46000] × 100

⇒ Revenue – 46000 = 8 × 460

⇒ Revenue = 3680 + 46000

⇒ Revenue = 49680

Given:

A can complete the work in 14 days

B can complete the work in 21 days

Concept:

In this type of question always imagine the total work as LCM of time taken by individuals to perform the work.

Formula used:

Efficiency = Total work/Time taken

Calculation:

Let the total work be LCM of 21, 14 i.e 42 unit

So, Efficiency of A = 42/14 = 3 unit/day

Efficiency of B = 42/21 = 2 unit/day

Efficiency of (A + B) = 5 unit/day

According to Question,

A and B work for 4 days and performed work = 4 × 5 = 20 unit

Remaining work left = 42 – 20 = 22 unit

B completes the remaining work = 22/2 = 11 days

∴ Time taken by B to complete the remaining work is 11 day

Shortcut Trick

Arrange the 15 data points in Ascending Order: 0, 0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 4, 5, 5, 5.

Since the total number of observations (n = 15) is Odd, the Median is the exact middle term.

Middle Position = (n + 1) ÷ 2 = (15 + 1) ÷ 2 = 8^th position.

The value at the 8^th position in the sorted list is 2.

∴ The correct answer is 2.

Alternate Method

Given Data: 0, 3, 2, 1, 5, 3, 4, 5, 5, 2, 2, 0, 0, 1, 2

⇒ Step 1: Count total number of observations (n). Here, n = 15.

⇒ Step 2: Arrange data in Ascending Order: 0, 0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 4, 5, 5, 5.

⇒ Step 3: Apply Median Formula for odd n: Median = ((n + 1) ÷ 2)^th term.

⇒ Step 4: Median = ((15 + 1) ÷ 2)^th term = 8^th term.

⇒ Step 5: Identifying the 8^th term from the sorted list: 2.

∴ The correct answer is 2.

Additional Information

Median for Even Number of Observations

If n is even, the median is the average of the (n ÷ 2)^th term and the ((n ÷ 2) + 1)^th term.

Mode of Data

The Mode is the value that appears most frequently. In this data set, 2 appears 4 times, so the Mode is also 2.

Mean of Data

The Arithmetic Mean is the sum of all observations divided by the total number of observations.

Shortcut Trick

Ratio A : B : C = (5 × 11) : (8 × 11) : (8 × 13) = 55 : 88 : 104.

Given A = 110, which is 55 × 2.

Therefore, C = 104 × 2 = 208.

∴ The correct answer is 208.

Alternate Method

Given: A : B = 5 : 8 and B : C = 11 : 13. A = 110.

Formula: To combine A : B and B : C, multiply the ratios to make B common.

⇒ A / B = 5 / 8

⇒ B / C = 11 / 13

⇒ A / C = (A / B) × (B / C) = (5 / 8) × (11 / 13)

⇒ A / C = 55 / 104

⇒ 110 / C = 55 / 104

⇒ C = (110 × 104) ÷ 55

⇒ C = 2 × 104 = 208

∴ The correct answer is 208.

Additional Information

Compounded Ratio

The compounded ratio of (a : b) and (c : d) is (ac : bd). In this question, (A:B) × (B:C) gives the ratio A:C.

Balancing Ratios

To find a continuous ratio A:B:C, the common term B must have the same value in both ratios by multiplying with suitable constants.

The correct answer is option 4), i.e., Forgive.

Explanation:

The blank is used right after the adverb 'never', suggesting that it should contain a verb.

Given the context, the verb should mean 'blame' or alternately, 'excuse'. Both can fit here.

Let's look at the meanings of the given options:

Conduit- a channel for conveying water or other fluid.

Outcast- a person who has been rejected or ostracized by their society or social group.

Contain- have or hold (someone or something) within.

Forgive- stop feeling angry or resentful towards (someone) for an offence, flaw, or mistake.

Out of these, only Forgive fits the context of 'those who have done wrong'.

Thus, the complete sentence is: They never forgive those who have done wrong.

The correct answer is option 3),i.e., In holiday?

Explanation:

• The error lies in option 3, which uses the incorrect preposition 'In'.
• In- expressing the situation where something is surrounded by something else. Example: I am in Hawaii.
• Given the context, the preposition should be showing the state of his being engaged in 'a holiday'.
• Important Point:
• So, the correct preposition here should be 'On'.
• On- indicating the state or process that one is engaged in. Example: The officer was on leave when it happened.

Thus, the rectified sentence is: Does he like to go for sight seeing when he is on holiday?

Hinglish

• त्रुटि option 3 में है, जो गलत पूर्वसर्ग 'In' का उपयोग करता है।
• In- उस स्थिति को व्यक्त करना जहां कोई चीज किसी और चीज से घिरी हो। उदाहरण: I am in Hawaii. (मैं हवाई में हूँ।)
• संदर्भ को देखते हुए, पूर्वसर्ग को 'छुट्टी' में लगे होने की स्थिति को दर्शाना चाहिए।
• Important Point:
• तो, यहाँ सही पूर्वसर्ग 'On' होना चाहिए।
• On- उस प्रक्रिया को इंगित करना जिसमें कोई लगा हुआ है। उदाहरण: The officer was on leave when it happened. (घटना के वक्त अधिकारी छुट्टी पर थे।)

The correct answer is option 4, i.e., Changeable.

Key Points:- 

• Out of the given options, only option 4 shows the correct spelling of the word 'Changeable'.
• 'Changeable' means liable to unpredictable variation or change. (अप्रत्याशित परिवर्तन या परिवर्तन के लिए उत्तरदायी)
• Example: The weather in the mountains is rather changeable.

The correct answer is option 3, i.e., Endemic.

Key Points

• Let's look at the meanings of the given options:
• Genetic- relating to genes or heredity. (जीन या आनुवंशिकता से संबंधित)
• Contagious- (of a disease) spread from one person or organism to another, typically by direct contact. ((एक बीमारी का) एक व्यक्ति या जीव से दूसरे में फैलता है, आमतौर पर सीधे संपर्क द्वारा)
• Endemic- (of a disease or condition) regularly found among particular people or in a certain area. ((एक बीमारी या स्थिति का) नियमित रूप से विशेष लोगों या एक निश्चित क्षेत्र में पाया जाता है)
• Viral- of the nature of, caused by, or relating to a virus or viruses. (वायरस या वायरस से संबंधित या उसके कारण)

​

Out of these, only Endemic shows the meaning intended by the given group of words.

The correct answer is Vertical.

Key Points

• Horizontal means parallel to the plane of the horizon; on the same level, in a sideways direction. ( क्षितिज के समतल के समानांतर; एक ही स्तर पर, एक बग़ल में दिशा में)
• So, its opposite meaning must be on the same plane, in an upside-down direction. (इसका विपरीत अर्थ एक ही तल पर, उलटी दिशा में होना चाहिए)

Additional Information

• Let's look at the meanings of the given options:
• Parallel- side by side and having the same distance continuously between them. (कंधे से कंधा मिलाकर और उनके बीच लगातार समान दूरी रखना)
• Financial- relating to finance or money matters. (वित्त या धन के मामलों से संबंधित)
• Official- relating to an authority or public body and its activities and responsibilities. (किसी प्राधिकरण या सार्वजनिक निकाय और उसकी गतिविधियों और जिम्मेदारियों से संबंधित)
• Vertical- at right angles to a horizontal plane; in a direction, or having an alignment, such that the top is directly above the bottom. ( एक क्षैतिज विमान के समकोण पर; एक दिशा में, या एक संरेखण होना, जैसे कि शीर्ष सीधे नीचे से ऊपर है)
• Out of these, only Vertical is an appropriate antonym for Horizontal.

The correct answer is option 2, i.e., Ecologist.

Key Points

• Let's look at the meanings of the given options:
• Archaeologist- a person who studies human history and prehistory through the excavation of sites and the analysis of artefacts and other physical remains. (एक व्यक्ति जो स्थलों की खुदाई और कलाकृतियों और अन्य भौतिक के विश्लेषण के माध्यम से मानव इतिहास और प्रागितिहास का अध्ययन करता है)
• Ecologist- a person who studies ecosystems, environment, distribution of organisms (people, plants, animals), and the relationships between them. (एक व्यक्ति जो पारिस्थितिक तंत्र, पर्यावरण, जीवों के वितरण (लोगों, पौधों, जानवरों) और उनके बीच संबंधों का अध्ययन करता है)
• Anthropologist- a person engaged in the study of aspects of humans within past and present societies. (अतीत और वर्तमान समाजों के भीतर मनुष्यों के पहलुओं के अध्ययन में लगे व्यक्ति)
• Biologist- a person who has specialized knowledge in the field of biology and the underlying mechanisms that govern the functioning of biological systems. (एक व्यक्ति जिसे जीव विज्ञान के क्षेत्र में विशेष ज्ञान है और अंतर्निहित तंत्र जो जैविक प्रणालियों के कामकाज को नियंत्रित करते हैं)
• Out of these, only is Ecologist shows the meaning intended by the given group of words.

The correct answer is option 2, i.e., Affirm.

Key Points:- 

• Abolish means formally put an end to (a system, practice, or institution). (औपचारिक रूप से (एक प्रणाली, अभ्यास, या संस्था) को समाप्त करना)
• So, its opposite meaning must be to reinstate; uphold or defend something. ( इसका विपरीत अर्थ बहाल करना होना चाहिए; किसी चीज का बचाव करना)
• Let's look at the meanings of the given options:
• Build- construct (something) by putting parts or material together. (भागों या सामग्री को एक साथ रखकर निर्माण)
• Affirm- declare one's support for; uphold; defend. (किसी के समर्थन की घोषणा करें; बनाए रखना; बचाव)
• Cancel- decide or announce that (a planned event) will not take place. (तय करें या घोषणा करें कि (एक नियोजित घटना) नहीं होगी)
• Finish- something that is completed. (कुछ जो पूरा हो गया हो)
• Out of these, only Affirm is an appropriate antonym for Abolish.

• 'Build' may seem like the correct answer but it is not. ('Build' सही उत्तर की तरह लग सकता है लेकिन ऐसा नहीं है)
• 'Abolish' relates more to a concept or idea rather than a physical structure. ('Abolish' भौतिक संरचना के बजाय किसी अवधारणा या विचार से अधिक संबंधित है)
• 'Build' relates to actually making something; while 'Affirm' has conceptual connotations. ('Build' वास्तव में कुछ बनाने से संबंधित है; जबकि 'affirm' के वैचारिक अर्थ हैं)

The correct answer is option 2), i.e., Sri Lanka are.

​Explanation:

• The error lies in option 2, which uses the incorrect plural verb 'are'.
• The subject of the verb is the singular 'population'.
• Important Point:
• Subject Verb Agreement Rule: A singular subject takes a singular verb; while a plural subject requires a plural verb. Example: She talks. (Singular); They talk. (Plural).
• Here, the singular subject 'Population' would take the singular form of 'To be', which is 'Is'.

Thus, the rectified sentence is: The population of Sri Lanka is less than that of India.

The correct answer is option 4, i.e., Healing.

Explanation:

Curative means able to cure disease or heal.

Let's look at the meanings of the given options:

Trembling- shaking or quivering, typically as a result of anxiety, excitement, or frailty.

Damaging- causing physical damage.

Feeding- give food to; supply with resources.

Healing- the process of making or becoming sound or healthy again.

Out of these, only Healing is an appropriate synonym for Curative.

The correct answer is option 1), i.e., To give its best.

​Explanation:

• The sentence uses the incorrect past tense verb 'were give'.
• The underlined part is giving more information about the verb 'urged', making it an adverb phrase.
• In this case, only using the preposition 'to' makes the underlined part an infinitive, completing the sentence (making an Adverbial infinitive).
• This makes the phrase: To give its best.

Thus, the rectified sentence is: The football coach urged the team to give its best in the final match.

The correct answer is Millennium.

Key Points

• Out of the given options, only option 4 shows the correct spelling of the noun 'Millennium'.
• Millennium means a period of a thousand years, especially when calculated from the traditional date of the birth of Christ. (एक हजार साल की अवधि, खासकर जब मसीह के जन्म की पारंपरिक तिथि से गणना की जाती है।)
• Example: The human civilization is set to enter a new millennium.

The correct answer is option 2), i.e., Wherever.

Explanation:

The sentence uses the blank between two complete sentences to join them; suggesting that it should contain conjunction.

Given the context, the conjunction should mean 'in every place'.

Let's look at the meanings of the given options:

Moreover- as a further matter; besides.

Wherever- in every case when.

However- to whatever extent.

Whenever- at whatever time; on whatever occasion.

Out of these, only Wherever is appropriate here.

Thus, the completed sentence is: I make friends wherever I go.

The correct answer is option 3, i.e., Obvious.

Explanation:

Apparent means clearly visible or understood; obvious.

Let's look at the meanings of the given options:

Considerable- notably large in size, amount, or extent.

Doubtful- feeling uncertain about something.

Obvious- easily perceived or understood; clear, self-evident, or apparent.

Questionable- doubtful as regards truth or validity.

Out of these, only Obvious is an appropriate synonym for Apparent.

The correct answer is option 2), i.e., Gave me everything.

​Explanation:

• The sentence uses the incorrect simple present tense verb 'Give'.
• The second verb of the sentence is the simple past tense 'asked'.
• Given the context, the first verb here should also be in its simple past tense form, 'Gave'.
• Extra Point:
• Note that present perfect 'has given' and past perfect 'had given' are also grammatically correct forms in this case.

Thus, the rectified sentence is: She gave me everything I asked for.

The correct answer is option 2), i.e., Has increased 50 times.

Let's look at the following points-

• The sentence uses the incorrect plural verb 'have increased'.
• The subject of the verb is the singular 'use'.
• Important Point:
• Subject Verb Agreement Rule: A singular subject takes a singular verb; while a plural subject requires a plural verb. Example: She talks. (Singular); They talk. (Plural).
• Here, the singular subject 'Use' requires the singular present perfect verb 'Has increased'.

 Confusion Point-

• Option 3, 'has been increased to 50 times' is grammatically correct; but using 'To' requires a comparative noun in order to be meaningful. (Increased to 50 times of what?)
• So, in order to be correct, the structure would be: Increased to 50 times (of) the original value.

Thus, the rectified sentence is: A Study has shown that the use of mobile data in India has increased 50 times over the last three years.