DSSSB PRT Official Paper 28 Oct 2017 (Previous Year Paper)

The pattern followed is,

First Figure: one image

Second Figure: The first image is the 90⁰ anticlockwise Rotated image of the First figure and a symbol image is added as the second image.

Third Figure: The second image of Second figure is rotated 90⁰ anticlockwise and a new symbol image is added and the same pattern is continued in further figures.

The answer figure should have 90⁰ anticlockwise Rotated First image and one new symbol as the second image.

Option 3 has ‘M’ 90⁰ anticlockwise Rotated and a new symbol.

The figure which will come next in the pattern is,

Hence, option 3 is the correct answer.

The pattern followed is,

The triangle in the first figure is shifted to the left side in the second figure and the lines on the upper part of it are made straight.

In the third figure the triangle is shifted to the right side and the lines on the two parts are reversed or exchanged i.e. lower part are made straight and upper part tilted.

Similarly,

The square in the fourth figure is shifted to the left side in the fifth figure and the on the lower part are made straight in the fifth figure.

And,

In the answer figure the square is shifted to the right side and the lines on the two parts are reversed or exchanged.

The figure which will come next in the pattern is,

Hence, option 1 is the correct answer.

The pattern followed is,

The figure which is inside in the first figure is the outside figure for the second figure and a new figure is added inside the second figure, the figure which is inside the second figure is the outer figure for the third figure and so on.

The figure which will come next in the pattern is,

Hence, option 4 is the correct answer.

The pattern followed is,

In the first figure there are concentric lines given and in the second figure the concentric lines are eliminated and a single is maintained and one straight line is added in the middle of the figure.

Similarly,

In the third figure two concentric circles are given and in the fourth figure concentric circles are eliminated and a single circle is maintained and one straight line is added in the middle of the figure.

The figure which is related to third figure is option 4.

Hence, option 4 is the correct answer.

The pattern followed is,

The outside and inside symbols in the first figure are cut into half to obtain the second figure.

Similarly,

The outside and the inside image of the third figure are cut into half to obtain the fourth image.

Option 2 represents fourth figure.

Hence, option 2 is the correct answer.

All Mothers are also Daughters (Vice-Versa).

And,

All Mothers and daughters are Human Beings.

The correct Venn diagram is,

Hence, option 4 is the correct answer.

ADMINISTRATION → SITUATION cannot be formed from the given word, since there is no U in the word.

ADMINISTRATION → STRAIN can be formed from the given word.

ADMINISTRATION → TRADITION can be formed from the given word.

ADMINISTRATION → RATION can be formed from the given word.

Hence, “situation” cannot be formed using letters of the given word.

Option 1 → Sweet and sour are antonyms

Option 2 → Pointed and blunt are antonyms

Option 3 → Slow and high are not antonyms

Option 4 → Peak and valley are antonyms

Hence, “slow – high” is different from the rest.

The given number is 7834329513

Interchanging the first with second, third with fourth, fifth with sixth, seventh with eight and ninth with tenth digits,

The number after interchanging digits is 8743235931

Sixth digit from the right is ‘2’

8743235931

Hence, “2” is the correct answer.

Given,

A × B mean A is the brother of B and A + B means that A is the father of B

Drawing the diagrams,

Option 2 represents that ‘M is the nephew or niece of N, since M’s gender is not given’.

Hence, option 2 is the correct answer.

Arranging them according to the given information,

Pravir is between Bablu and Suresh. Suresh is between Jayesh and Pravir. Bablu is in the right end.Bablu is standing at the extreme right end.

Ashok is at the extreme left end.

Hence, “Ashok” is the correct answer.

Note:

Certain modifications are done as the Question was errorenous.

Arranging them according to the given information,

Pravir is between Bablu and Suresh. Suresh is between Jayesh and Pravir.

Suresh is in the middle.

Hence, “Suresh” is the correct answer.

Note:

Certain modifications are done as the Question was errorenous.

The pattern followed is,

Similarly,

Hence, “TPWOFT” is the correct answer.

The pattern followed is,

Hence, “JIS” is the correct answer.

By decoding given information:

The original equation is,

16 ÷ 8 × 6 - 2 + 12 = ?

Interchanging the signs,

16 + 8 – 6 × 2 ÷ 12 = ?

Using BODMAS rule,

16 + 8 – 6 × 1/ 6 = ?

16 + 8 – 1 = ?

24 – 1 = 23

Hence, “23” is the correct answer.

The pattern followed is,

The digits given in the question are interchanged to obtain the answer.

For 17 × 64 = 4716,

7 and 1 are written in the middle, and 4 and 6 are in the corners.

For 28 × 34 = 4823,

8 and 2 are written in the middle, and 4 and 3 are in the corners.

Similarly,

For 76 × 84 = ?

6 and 7 are written in the middle, and 4 and 8 are in the corners.

So 76 × 84 = 4678

Hence, “4678” is the correct answer.

The pattern followed is,

25, 36, 49, 64 and 81 are squares of 5, 6, 7, 8 and 9 respectively.

The next number should be square of 10, which is 100.

Hence, “100” is the correct answer.

Given statements are,

Some musicians are teachers

Some teachers are players

But

No musician is a player.

There is a relation between players and teachers, musicians and teachers, but there is no relation between musicians and players.

The correct Venn diagram is,

Hence, option 4 is the correct answer.

The pattern followed is,

For 13 : 93,

13 × 3 = 39

Reverse of 39 is 93

So, 13 : 93

Similarly,

For 17: ?

17 × 3 = 51

Reverse of 51 is 15

So, 17 : 15

Hence, “15” is the correct answer.

According to the given figures,

3 is the common number in the both dice,

The adjacent number of 3 is 1, 2, 5, 6.

No adjacent surface can be the opposite faces.

So, 4 is the opposite number of 3.

While, comparing both surfaces:

‘1’ is opposite to ‘5’

‘2’ is opposite to ‘6’

And,

‘3’ is opposite to ‘4’

‘3’ will appear on the face opposite to the face with the number 4.

Hence, “3” is the correct answer.

The Correct Answer is 2, 4, 3, 1.

Key PointsThe Dhaoula Dhar Range - Himachal Pradesh

• The Dhauladhar range is part of a mountain chain of Himalayan.
• It rises north of Kangra and Mandi, from the Indian plains.
• Dharamsala, the district headquarters of Kangra, sits above the Kangra Valley on its southern slope, separating it from Chamba.

Shiwalik Range- Outer Himalayas.

• Located in between the Great Plains and Lesser Himalayas.
• The altitude varies from 600 to 1500 meters.
• Runs for a distance of 2,400 km from the Potwar Plateau to the Brahmaputra valley.
• The southern slopes are steep while the northern slopes are gentle.
• The width of the Shiwaliks varies from 50 km in Himachal Pradesh to less than 15 km in Arunachal Pradesh.

Vindhya Range

• It is the oldest mountain range of Madhya Pradesh.
• Vindhya Range is the broken range of hills forming the southern escarpment of the central upland of India.
• From Gujarat state on the west, it extends about 1,086 km across Madhya Pradesh state to adjoining on the Ganga River valley near Varanasi, Uttar Pradesh.
• Kaimur hills are the easternmost hill of the Vindhya Range.
• kakrabardi hills are the westernmost hill of the Vindhya Range.

The Satpura Range

• In central India, Satpura hills are located in the states of Maharashtra, Gujarat, Chattisgarh, and Madhya Pradesh the hill expands.
• In Vindhya Range in the north, the Satpura range runs parallel to it.
• Vindhya Range divides North India from South India.
• In Amarkantak hills in the Satpura ranges, the River Narmada rises.
• From the eastern and central part of the Satpura, the Tapti River is originated.
• The Chota Nagpur plateau is met by Satpura Ranges on the eastern side.
• In the north, the Satpura hills are flanked by the Narmada River.

The Correct Answer is Gujarat.

• Black cotton soils are medium to high compressibility inorganic clays and form a significant soil group in India.
• They're distinguished by high properties of shrinkage and swelling.
• This Black Cotton soil mostly occurs in the central and western parts and covers about 20 percent of India's total territory.
• They are very strong when dry, but when in wet conditions lose their strength entirely.
• Chemically black soils are made of lime, iron, magnesium, alumina, and potash but nitrogen, phosphorus, and organic matter are missing.
• They are suitable for cotton cultivation, hence named as black cotton soil because of their capacity to retain water.
• The root of black cotton soils is ascribed to old lagoons in some areas of Gujarat and Tamil Nadu where the rivers deposited the materials carried down from the interior of the lava-covered peninsula.

Key Points

• In India, the black soil is rich in metals like iron, magnesium, and aluminum. However, Phosphorus, Potassium, Phosphorous, and Humus are deficient.
• Black soil is red mostly due to the quality of iron oxides. In India, this soil shares 15 percent of all soil types.
• The volcanic rocks and lava-flow make up these soils.
• It focuses on the Deccan Lava Tract, which includes parts of Gujarat, Chhattisgarh, Maharashtra, Andhra Pradesh, Tamil Nadu, and Madhya Pradesh.

The Correct Answer is Coromandel.

• The capital city of the state of Tamil Nadu is Chennai. It lies on the east coastal plain, on the coast of Coromandel. Generally, this area receives rainfall in winter and summer as well.
• Winter rainfall quantity is often reported bigger than it is in summer, however.
• This portion of the land lies in the shadow of the rain. Therefore the Western Ghats, during the south-west monsoon season, i.e. in summer, does not receive much rainfall.
• The north-east trade winds replace the south-west monsoon and pick up moisture when crossing the Bay of Bengal. These monsoon winds pull back.
• Therefore it becomes rain-fetching winds, particularly for Chennai on the coast of Coromandel.
• The south-western monsoon winds become weaker during the months of October-November and begin to withdraw from North India's skies.
• This monsoon period is known as the withdrawing monsoon.

Additional Information 

• The monsoon retreat season starts with the beginning of the withdrawal of the south-west monsoon [mid-September-November] and lasts until early January.
• It is a 3-month long process from the peninsula where it starts in October and from the extreme south-east tip by December.
• With the advent of fading monsoon, skies are getting brighter, and clouds are gone.
• The absence of clouds slowly makes the atmosphere in different areas hotter. The temperature descends sharply during this time.

The Correct Answer is Chandragupta II.

• The iron pillar is a structure 23 feet 8 inches high with 16 inches in diameter that was built by a "King Chandra,"  Chandragupta II, and now stands at Mehrauli in Delhi, in the Qutb complex.
• It is known for the rust-proof nature of the metals used in its construction.
• The pillar weighs more than six tonnes and is believed to have been erected elsewhere, perhaps outside the Udayagiri Caves, and shifted early in the Delhi Sultanate to its present position.
• The pillar carries a variety of inscriptions from various periods, some of which were not systematically examined considering the prominent location and easy access of the pillar.
• The oldest inscription on the pillar is that of a king called Chandra, commonly known as Chandragupta II, the Gupta Emperor.

The Correct Answer is Babasaheb Ambedkar.

• The Poona Pact was an agreement between Mahatma Gandhi and Babasaheb Ambedkar on behalf of depressed classes and Hindu representatives of the upper caste on reserving election seats for the depressed classes in the British India government's legislature of 1930.
• It was made at Yerwada Central Jail in Poona, India on 24 September 1932.
• It was signed by Ambedkar on behalf of the backward classes and by Madan Mohan Malviya on behalf of the upper caste Hindus and Gandhi in protest against British Prime Minister Ramsay MacDonald's decision to give separate votes to the deprived classes for the provincial membership election.
• In the end, they settled on 147 election seats.

The correct answer is Todar Mal.

• As Akbar's finance minister, Raja Todar Mal has implemented a new revenue system called zabt, and a tax system called dahshala.
• He took a careful survey of crop yields and cultivated prices for a ten-year 1570–1580 era.
• On this basis, the tax has been set in cash on each harvest.
• Each province was divided into income circles with its own tax rates and an individual crop schedule.
• There was a prevalence of this method where the Mughal administration could survey the land and keep careful records.

Important Points 

• The Akbar territory was divided into 15 Subahs for the revenue system, further subdivided into a total of 187 Sarkars across 15 subahs, and those 197 sarkars (sirkar) were subdivided into a total of 3367 Mahals or Pargana.

The correct answer is Interference.

• Interference
• As light falls on a soap bubble it reflects part of the light. Any light goes into the bubble and is mirrored from the other side of the surface of the bubble.
• Any of the beams of light are refracted. When we look at a bubble, we see all these beams of light.
• As the bubble film is very small, the reflected rays get out of sync with each other a little bit.
• Since the light is moving in the form of a wave, this being out of sync allows some of the waves to cancel or enhance each other. White light consists of seven colours, each of which corresponds to a specific wavelength.
• When the waves of light cancel out or strengthen, some of the wavelengths get a boost and some vanish.
• This gives rise to the colour of an oil film bubble on water. Due to the uniform thickness of the bubble or film, each area of the film creates a different colour. In physics, the phenomenon is called interference.

The Correct Answer is Hook Worm.

• Hookworm infection is a form of intestinal parasite infection known as the hookworm.
• At the site of infection, itching and a rash can initially occur. Those affected only by a few worms may not exhibit any symptoms.
• Serious morbidity associated with hookworm infection is caused by loss of intestinal blood, anaemia with iron deficiency, and malnutrition with proteins.
• They are primarily the product of adult hookworms that consume blood in the small intestine, break erythrocytes, and degradation of haemoglobin in the host.
• Hookworm infection is helminthiasis spread by the soil and is known as a neglected tropical disease.

The Correct Answer is Nitrogen oxides.

Key Points

• Photochemical smog is a brownish-grey haze caused by the action of ultraviolet solar radiation on atmospheres contaminated with hydrocarbons and nitrogen oxides.
• It includes anthropogenic air contaminants, especially ozone, nitric acid, and organic compounds that are trapped by temperature inversion near the ground.
• These and also some other contaminants can affect human health and cause plant damage. Because of some of its gaseous components, photochemical smog also has an unpleasant odor.
• It appears that photochemical smog is caused by nitrogen oxides released into the air as contaminants primarily from internal combustion engines.
• Absorbing ultraviolet energy, it forms nitric oxide (NO) into free oxygen atoms (O), which then combine with molecular oxygen (O₂) to form ozone (O₃).
• Different chemical reactions to create photochemical smog occur in the presence of hydrocarbons (other than methane), some other organic compounds, and sunlight.

The Correct Answer is Pineal.

• The main circadian clock in mammals is in the suprachiasmatic nucleus(SCN), a pair of independent cell groups in the hypothalamus.
• SCN destruction results in the complete absence of a normal pattern of sleep-wake. The SCN receives information from the eyes about illumination.
• The SCN takes the details on the day and night cycles from the retina interpret it and pass it on to the pineal gland, a tiny organ shaped like a pine cone and on the epithelium.

Additional Information 

• The pineal gland is a tiny endocrine gland in most vertebrate brains.
• The pituitary gland is also referred to as the master gland since it regulates the body's many other hormone glands, including the thyroid and adrenals, ovaries, and testes. The thyroid is a gland shaped like a butterfly that lies low on the front of the neck.
• The thymus is an Immune System specialist primary lymphoid organ.

The Correct Answer is Regressive.

• Indirect tax is a kind of tax where the incidence and effect of taxes on the same individual do not fall.
• In the case of indirect tax, the taxpayer will transfer the burden of the tax to someone else.
• Indirect tax has the effect of increasing the price of the goods they are being levied on.
• Examples of indirect tax are the customs taxes, central excise, sales tax, and value-added tax.

Additional Information

• .The progressive tax follows the 'ability to pay' concept since it is assessed on the basis of the income and wealth of the individual.
• As it is possible to calculate the ability to pay, direct taxes are levied at a progressive rate whereby the wealthy pay higher taxes relative to the poor individual.

Pradhan Mantri Mudra Yojana is related to Industries.

Key Points

• Pradhan Mantri MUDRA Yojana (PMMY) is a scheme launched by Prime Minister Narendra Modi on 8 April 2015, for providing loans up to 10 lakh to the non-corporate, non-farm small/micro-enterprises. These loans are classified as MUDRA loans under PMMY (Pradhan Mantri MUDRA Yojana).
• Chairman of MUDRA Ltd - Shri Mohammad Mustafa
• The full form of MUDRA is Micro Units Development and Refinance Agency Ltd. [MUDRA]

Important Points

• There are 3 types of MUDRA LOAN

The Correct Answer is Undo.

• Pressing Ctrl+Z in Microsoft Word and other Word Processor programs can undo any changes made in the document.
• Ctrl+Z is the keyboard shortcut when using the MS-DOS copy con command which completes the file creation and saves the file to the computer.
• Pressing Ctrl+Z would erase any changes made in the spreadsheet in Microsoft Excel and other spreadsheet programs.
• In all major browsers on the Internet (e.g., Chrome, Edge, Firefox, Opera) pressing Ctrl+Z can remove any changes in a file type

​

Additional Information .

• For Open a new document, Press Ctrl+N in Microsoft Word.
• Open the file through any programme provided by clicking on the File button, then open or press the Ctrl+O keyboard shortcut.

The Correct Answer is Reserve Bank of India(RBI).

• The banks mainly decided on the rate of interest they pay on a savings bank account.
• However, on 1 March 2003, the RBI (Reserve Bank of India) had controlled the interest rates on savings accounts and has since remained unchanged.
• A bank may give a minimum interest rate on a savings bank account fixed by the RBI in a circular issued by them is 3.5 percent p.a.
• The interest rate set on savings account deposits is calculated by the relationship between the value of banks earning extra deposits and the value of savers on the savings account services.
• The way governments and central banks set interest rates in the economy control certain valuations.

The Correct Answer is Both (A) and (B).

Key Points

• In the Indian constitution, both the Supreme Court and the High Court have the authority to grant a writ of 'Habeas Corpus.'
• Article 32 deals with the ‘Right to Constitutional Remedies’, or affirms the right to move the Supreme Court by appropriate proceedings for the enforcement of the rights conferred in Part III of the Constitution.
• Article 226 of the Constitution empowers a high court to issue writs including habeas corpus, mandamus, certiorari, prohibition and quo warranto for the enforcement of the fundamental rights of the citizens and for any other purpose.

Additional Information

• The Latin meaning of the word ‘Habeas Corpus’ is ‘To have the body of.’
• This writ is used to enforce the fundamental right of individual liberty against unlawful detention.
• Through Habeas Corpus, Supreme Court/High Court orders one person who has arrested another person to bring the body of the latter before the court.
• A writ of habeas corpus is a writ that allows an accused person to be brought before a judge or in court.
• The habeas corpus principle guarantees that an inmate may be released from unlawful custody, i.e. custody without adequate cause or proof.
• The cure may be obtained by the inmate or any person who comes to the assistance of the prisoner.
• This right emerged in the legal system in English and is now available in several nations.
• Historically it has been an important legislative tool protecting individual rights from arbitrary state intervention.

The Correct Answer is Kerala.

Key Points

• The semiclassical dance style of Mohiniyattam from the state of Kerala, south-west India.
• In his rebirth as the enchantress Mohini the dance is performed by women in praise of the Hindu god Vishnu.
• According to Hindu mythology, Vishnu took the form of Mohini to confuse the demon Bhasmasura while th
• Mohini's theory forms the basis of every success on mohiniyattam.
• e gods took from the churning of the celestial oceans the elixir of immortality, and thus saved the world from destruction.
• Music for mohiniyattam is given by a classical music ensemble based in Karnatak (South Indian).
• Kathakali is another form of classical Kerala dance.

The Correct Answer is Bismillah Khan.

• Ustad Bismillah Khan was Indian maestro shehnai devoted.
• On March 21, 1916, the much-celebrated musician was born into the musicians' family.
• Ustad Bismillah has received prestigious awards, such as Padma Bhushan, Padma Shri, Bharat Ratna, and Padma Vibhushan, and has become a worldwide famous name.
• He perfected the art of playing the shehnai and also had the distinction of playing in 1947 on the eve of the independence of Indian.
• Even today, the annual celebrations of Republic Day are broadcast to the opening notes of the music of Ustad Bismillah.

The Correct Answer is Japan.

• Pusarla Venkata(PV) Sindhu became the first Indian shuttler to win the Korean Open Super Series at the BWF on 17 September 2017.
• She beat Japan's Nozomi Okuhara 22-20, 11-21, 21-18 to win the coveted title.
• The duo had already played out the longest match in the BWF World Championship final in August 2017, when Okuhara emerged victorious after a game of 110 minutes.
• PV Sindhu was born on 5 July 1995 and is an Indian professional badminton player.
• In the BWF World Ranking, she is currently No. 4 in the World.
• She became the first Indian woman to receive an Olympic silver medal at the 2016 Summer Olympics.
• She was honored with India's fourth highest civil honor in March 2015, the Padma Shri.
• The Korea Open Super Series is a badminton event that is held annually.
• It was held in Seoul, South Korea.

The Correct Answer is Japan.

Key Points

• Malabar Exercise is a trilateral naval exercise involving permanent relationships with the United States, Japan, and India and Australia.
• Before 1998, when the Americans suspended exercises after India tested nuclear weapons, three exercises had been carried out.
• Japan was originally launched as a bilateral exercise between India and the United States in 1992 and became a permanent partner in 2015. Neither Australia nor Singapore is past non-permanent participants.
• The annual Malabar series started in 1992 and involves numerous events, ranging from aircraft carriers to fighter combat operations to Maritime Interdiction Operations Exercises.

The Correct Answer is 5 years.

• Vice President of India is India's second-highest post-President constitutional office in India. Article 63 of the Indian Constitution states that "There shall be a Vice President of India."
• The Vice President shall serve as President in the absence of a President by reason of death, resignation, impeachment, or other circumstances.
• The Vice President of India is now ex officio Rajya Sabha's Chairperson. When a bill is put in Rajya Sabha, the vice president decides whether or not it is a financial bill.
• If he thinks a bill introduced in the Rajya Sabha is a money bill, he will refer the case to the Lok Sabha Speaker for decision.
• Article 66 of the Indian Constitution provides for the manner in which the Vice President shall be chosen.
• The Vice President is indirectly chosen by members of an electoral college composed of members of both Houses of Parliament in accordance with the system of Proportional Representation through the Single Transferable Vote and the vote is by secret ballot by the election commission.
• The Vice President of India also serves as Panjab University's Honorable Chancellor, Chandigarh.
• Jagdeep Dhankar - Vice President of India.

Given:

Sum of money is distributed among A, B, C and D in the ratio = 5: 2: 4: 3

Share of C = Rs.2000 more than D

Calculation:

Difference between ratio of C and D = 4 – 3 = 1 unit

According to question:

1 unit = Rs.2000

∴ the share of B = 2000 × 2 = 4000

∴ the required share of B = Rs.4000

Given:

A varies directly as B²

B = 2, A = 8

Calculation:

A ∝ B²

⇒ A = k B² (k is constant) -------(i)

When, A = 8 and B = 2

⇒ 8 = k × 2²

⇒ 8 = 4k

⇒ k = 2

Putting value of k in equation (i)

A = 2B ------(ii)

When  B = 5 from (ii) we get

A = 2 × 5²

A = 2 × 25 = 50

∴ the required value of A = 50

Given:

5 × (625)^0.25

Calculation:

(625)^0.25 = (625) ^(1/4) = 5

⇒ 5 × 5 = 25

∴ the required value = 25

If the value of n = 2

According to question:

⇒ 2(2+1) (2+2)

⇒ 2(3)(4) = 24

∴ the required number = 24

Concept:

Prime numbers are numbers that have only 2 factors: 1 and themselves. For example, the first 5 prime numbers are 2, 3, 5, 7, and 11

133/7 = 19

∴ 133 is not a prime number

Concept:

Prime numbers are numbers that have only 2 factors: 1 and themselves. For example, the first 5 prime numbers are 2, 3, 5, 7, and 11

∴ only value possible of x to make all the values prime = 1

⇒ (1+1) & (1+2)

⇒ 2 & 3

Both numbers are prime

∴ the required value of x = 1

Shortcut Trick

The product of any two numbers is always equal to the multiplication of their HCF and LCM.

Product = HCF × LCM

Product = 10 × 45 = 450

∴ The correct answer is 450.

Alternate Method

Given:

HCF of the numbers = 10

LCM of the numbers = 45

Formula Used:

Product of two numbers = HCF × LCM

Calculations:

⇒ Product of numbers = 10 × 45

⇒ Product of numbers = 450

∴ The correct answer is 450.

Additional Information

Fundamental Relation

For any two positive integers a and b, the product of the numbers is equal to the product of their HCF and LCM: a × b = HCF(a, b) × LCM(a, b).

HCF (Highest Common Factor)

It is the largest positive integer that divides each of the integers without leaving a remainder.

LCM (Least Common Multiple)

It is the smallest positive integer that is divisible by both numbers. Note that the HCF must always be a factor of the LCM for any valid pair of integers.

Largest four-digit number exactly divisible by 9, 11, 12 and 13 is

LCM of (9, 11, 12, 13) = 5148

Number which is divisible by 5148 is divisible by = 9, 11, 12, 13

According to question

Largest 4-digit number which is divisible by 9, 11, 12 and 13 is 5148

∴ the required number = 5148

Given:

Sum of the numerator and denominator = 14

One is added to the numerator and 3 is subtracted from the denominator fraction become 1

Calculation:

Let the fration be = (x/y)

Sum of x + y =14

⇒ x = 14 - y

According to question:

⇒ [(x + 1) / (y – 3)] = 1

⇒ x + 1 = y – 3

⇒ (14 – y) + 1 = y – 3

⇒ 15 – y = y – 3

⇒ 18 = 2y

⇒ y = 9

∴ x = 14 – 9 = 5

∴ the required fraction = 5/9

Given:

Average of a group of 9 numbers = 68

If of number is replaced by a new number the average becomes 72

Formula used:

Average of a number = sum of all the quantites / total quantites

Calculation:

68 = sum of all the quantites / 9

⇒ sum of all the quantities = 68 × 9 = 612

According to question:

New average after the entry of new member in the group = 72

Number of students = 9

Sum of all quantites= 72 × 9 = 648

∴ the difference between the new number and old number = 648 – 612 = 36

∴ the required difference = 36

Given:

\((\sqrt{3}^5) \times (9)^2 = 3^n \times 3\sqrt{3}\)

Calculation:

(√3)⁵ × 3⁴ = 3ⁿ × 3¹ × √3

⇒ [3^(1/2)] ⁵ × 3⁴ = 3ⁿ × 3¹ × 3^(1/2)

Bases are equal

⇒ (5/2) + 4 = n + 1 + (1/2)

⇒ 5 + 8 = 2n + 2 + 1

⇒ 13 = 2n + 3

⇒ n = 5

∴ the required value of n = 5

Given:

\(0.\overline{8}\)

Calculation:

In denominator equal number of 9 comes to the number which have bar in numerator

here 8 is only one which has bar

∴ 8/9

∴ the required value = 8/9

Given:

\(\sqrt{1.21} - \sqrt{.01} = ?\)

Calculation:

√1.21 = 1.1

√0.01 = 0.1

According to question:

⇒ 1.1 - 0.1 = 1.0

∴ The required value 1.0

Calculation:

Let the number be x

According to question:

⇒ x × (200/100) = 90

⇒ (x) × 2 = 90

⇒ x = (90)/2

⇒ x = 45

Now

80% of 45 = (4/5) × 45 = 36

Area= π × (radius)²

Let the initial radius be 10

Initial Area= π × (radius)²

⇒ π × (10)² = 100π

According to question:

1% of 10 = 0.1

New radius of the circle = 10 + 0.1 = 10.1

New area = π × (radius)²

⇒ π × (10.1)²

⇒ 102.01π

Increased in circumference = 102.01π – 100π = 2.1π

Percentage increase in the percentage of circumference = (2.01π / 100π ) × 100 = 2.01%

∴ the increased percentage = 2.01%

Given:

Cost price of 15 apples is equal to selling price of 20apples

Calculation:

Cost price of 15 apples = selling price of 20 apples

⇒ CP(15 apples) = SP(20 apples)

⇒ CP / SP = 20/15 = 4/3

∴ cost price of one apple = 4

⇒ selling price of one apple = 3

⇒ Loss = 4 – 3 = 1

Loss % = (1 / 4 ) × 100 = 25%

∴ the required loss% = 25%

Given:

A sum is invested for 2 years

Formula used:

Simple interest = (Principal × time × rate) / 100

Calculation:

Let principal be x

Rate be r

Time = 2

According to question:

⇒ (x × r × t) /100

When the rate in increased by 3%

⇒ {x × (r + 3) × 2} /100 - [{x × r × 2} /100] = 300

⇒ {2x(r + 3)} – {2xr} = 300 × 100

⇒ 2xr + 6x – 2xr = 30000

⇒ 6x = 30000

⇒ x = 30000 / 6 = 5000

∴ the required sum of money = Rs. 5000

Given:

Principal, P = Rs. 12000; Rate of interest = r%; Number of years, n = 5

Formula Used:

Amount = P (1 + R/100)n 

Where P = principal 

R = rate 

n = time 

Calculation:

A = Rs (2 × 12000) = Rs. 24000

According to the question,

24000 = 12000 × (1 + r/100)5

⇒ (1 + r/100)5 = 2     ...i)

For next part,

Principal, P = Rs. 12000; Rate of interest = r%; Number of years, n = 20; Amount = Rs. x

According to the question,

x = 12000 × (1 + r/100)20

⇒ x = 12000 × (1 + r/100)5 × 4

⇒ x = 12000 × [(1 + r/100)5]4

⇒ x = 12000 × 24     ...[from (i)]

⇒ x = 192000

∴ After 20 years it will become Rs. 1,92,000

12000 becomes twice in 5 years = 12000 × 2 = 24000

After another 5 years = 24000 × 2 = 48000

After another 5 years = 48000 × 2 = 96000

After another 5 years = 96000 × 2 = 1,92,000

∴ After 20 years sum will be = 192000

Base of right angle triangle = 4 m

Hypotenuse of right angle triangle = 5 m

Pythagoras theorem:

Hypotenuse² = base² +perpendicular²

According to Pythagoras theorem

⇒ 5² = 4² + perpendicular²

⇒ 25 = 16 + perpendicular²

⇒ perpendicular² = 9

⇒ perpendicular = √9 = 3

Area of a triangle = ½ × base × height

⇒ area of triangle = ½ × 4 × 3 = 6

∴ the are of triangle = 6 m² 

Given:

Perimeter of rectangle = 200 m

Breath of rectangle = 40 m

Formula used:

Perimeter of rectangle = 2(length + breath)

Area of rectangle = length × breath

Calculation:

200 = 2(length + 40)

⇒ 100 = length + 40

⇒ length = 100 – 40 = 60 m

Area of rectangle = length × breath

⇒ area of rectangle = 60 × 40 = 2400 m²

∴ the area of rectangle = 2400 m²

सही उत्तर तेज गति से चल रही है। है। 

Key Points

दिए गए विकल्पों में से वाक्य ‘नया कारखाना लगने के बाद उस जगह की तरक्की तेज गति से चल रही है।’

• इस वाक्य में ‘अनावश्यक शब्द प्रयोग’ की त्रुटी है। यहाँ ‘तेज और गति’ दोनीं शब्दों से एक ही अर्थ निकलता है, इसलिए गति अनावश्यक शब्द है।
• अतः सही विकल्प तेज गति से चल रही है है।

सही उत्तर व‍िकल्‍प (3) बड़े है। अन्‍य व‍िकल्‍प असंगत हैं। 

Key Points

• सम्पूर्ण वाक्य- ‘पंडित जी बड़े सज्जन पुरुष है’।
• यहाँ ‘अनावश्यक शब्द प्रयोग’ की त्रुटी है।
• यहॉं सज्जन शब्द के होने के बाद भी बड़े शब्द का प्रयोग अनावश्यक किया गया है।
• इस प्रकार वाक्य का सही रूप है -‘पंडित जी सज्जन पुरुष है।’
• अतः सही विकल्प बड़े है।

दिए गए विकल्पों में से ‘पशु का जीवन सहज प्रवृत्ति से परिचालित होता है, अर्थात ‘परिचालित’ शब्द का अर्थ ‘जो चलाया गया हो’। अन्य विकल्प असंगत है। अतः सही विकल्प परिचालित है।

अन्य विकल्प

दिए गए विकल्पों में वाक्य के अनुसार प्रारूप शब्द का प्रयोग उचित है। इस प्रकार वाक्य का शुद्ध रूप है – उस योजना का प्रारूप तैयार किया जा रहा है। प्रारूप का अर्थ है ‘प्राथमिक रूप, खाका।’ अन्य विकल्प असंगत है। अतः सही विकल्प प्रारूप है।

अन्य विकल्प

दिए गए वाक्य के अनुसार उपयुक्त शब्द विचलित है।  इस प्रकार वाक्य का सही रूप है – “धैर्यवान व्यक्ति विपत्ति में भी विचलित नहीं होता है।” विचलित का अर्थ “अस्थिर, चंचल, अधीर, व्याकुल” होता है। अन्य विकल्प असंगत है। अतः सही विकल्प विचलित है।

अन्य विकल्प

दिए गए विकल्पों में से ‘ढाक के तीन पात’ का मुहावरे का अर्थ है “सदा एक सा।” अन्य विकल्प असंगत है। अतः सही विकल्प सदा एक सा है।

अन्य मुहावरे

दिए गए विकल्पों में से ‘छाती पर मूंग दलना’ मुहावरे का अर्थ पास रखकर दुःख देना है। अन्य विकल्प असंगत है। अतः सही विकल्प पास रखकर दुःख देना है।

अन्य विकल्प

दिए गए विकल्पों में से ‘तीन तेरह करना’ मुहावरे का अर्थ बिखर जाना है। अन्य विकल्प असंगत है। 

• तीन तेरह करना - बिखर जाना
• श्री हनुमान जी को देखकर हर राक्षस तीन के तेरह हो जाते है।

Key Points

अन्य विकल्प

दिए गए विकल्पों में से बहुत सी भाषाओं को जानने  वाले को बहुभाषाविद् कहते है। अन्य विकल्प असंगत है। अतः सही विकल्प बहुभाषाविद् है।

अन्य विकल्प

दिए गए विकल्पों में से त्रुटीयुक्त वर्तनी शब्द सम्मीलित है। इसका शुद्ध रूप सम्मिलित है। अतिरिक्त शब्द शुद्ध हैं।

अन्य महत्वपूर्ण अशुद्ध-शुद्ध शब्द

दिए गए विकल्पों में से त्रुटियुक्त वर्तनी शब्द औषधी है। इसकी शुद्ध वर्तनी औषधि है। अन्य विकल्प असंगत है। अतः सही विकल्प औषधी है।

अन्य अशुद्ध-शुद्ध शब्द

दिए गए विकल्पों में से हमारे देश में अनेक जातियाँ हैं सही वाक्य है। अन्य विकल्प असंगत है। अतः विकल्प हमारे देश में अनेक जातियाँ हैं सही है।

स्पष्टीकरण

दिए गए विकल्पों में अनेकों शब्द का प्रयोग किया गया है जो की अशुद्ध है। अनेक एक बहुवचन शब्द है तथा इसका अर्थ है 'कई या एक से ज़्यादा'। अतः अनेक शब्द का प्रयोग करने पर यहाँ जातियाँ शब्द का प्रयोग करना शुद्ध होगा। इस प्रकार वाक्य का शुद्ध रूप है – “हमारे देश में अनेक जातियाँ हैं।”

दिए गए विकल्पों में से तुम उन पर गुस्सा मत करो सही वाक्य है। अन्य विकल्प व्याकरणिक और विभक्ति के प्रयोग के अनुसार गलत हैं। अतः सही विकल्प तुम उन पर गुस्सा मत करो है।

अन्य महत्वपूर्ण अशुद्ध-शुद्ध वाक्य

दिए गए विकल्पों में से ‘धरती’ शब्द का पर्यायवाची शब्द अचला है। अन्य विकल्प असंगत है। अतः सही विकल्प अचला है।

अन्य विकल्प

दिए गए विकल्पों में से ‘अनिल’ शब्द का पर्यायवाची पवन है। अन्य विकल्प असंगत है। अतः सही विकल्प पवन है।

अन्य विकल्प

'दानी' का विपरीतार्थक शब्द 'कृपण' है। शेष विकल्प असंगत हैं। अतः सही विकल्प 'कृपण' है। 

Key Points 

स्पष्टीकरण

'दानी' का अर्थ 'दान करने वाला' होता है और 'कृपण' का अर्थ 'कंजूस' है।

अन्य विकल्प

Additional Information

विशेष 

'परोक्ष का विपरीतार्थक शब्द 'प्रत्यक्ष' है। शेष विकल्प असंगत हैं। अतः सही विकल्प 'प्रत्यक्ष' है।

अन्य विकल्प

 

विशेष 

दिए गए विकल्पों में से ‘तिरस्कार’ शब्द का संधि विच्छेद तिरः + कार है, यहाँ विसर्ग संधि है। अन्य विकल्प असंगत है। अतः सही विकल्प तिरः + कार है।

स्पष्टीकरण

विसर्ग संधि के नियम के अनुसार यदि विसर्ग के पहले वाले वर्ण में अ या आ का स्वर हो तथा विसर्ग के बाद क, ख, प, फ हो  तो संधि होने पर विसर्ग भी ज्यों का त्यों बना रहेगा। जैसे – पुरस्कार = पुरः + कार।

दिए गए विकल्पों में से तद्भव  शब्द  खीर है। अन्य विकल्प असंगत है। अतः सही विकल्प खीर है।

Key Points

Confusion Points

 

Additional Information

दिए गए विकल्पों में से बहुवचन शब्द  समाचार है। अन्य विकल्प सदा एकवचन में ही प्रयुक्त होता है। अतः सही विकल्प समाचार है।

स्पष्टीकरण

हस्ताक्षर, आँसू, दर्शन, प्राण, दाम, अक्षत, लोग आदि हमेशा बहुवचन के रूप में प्रयोग किए जाते हैं।

विशेष

The correct answer is Option 3 i.e. enthusiastic.

Key Points

Let's look at the meaning of the marked option.

• enthusiastic- having or showing intense and eager enjoyment, interest, or approval.
• Example: ​"he could be wildly enthusiastic about a project"

​Hence, from the given meaning and example, we find that the correct answer is: enthusiastic.

Let's look at the meanings of the other given options. 

• smart- having or showing a quick-witted intelligence.
• devoted- very loving or loyal.
• Patient- able to accept or tolerate delays, problems, or suffering without becoming annoyed or anxious.

The correct answer is Estimate.

Key Points

Let's look at the meaning of the marked option.

• Estimate: Roughly calculate or judge the value, number, quantity, or extent of, appraise.
• Example: ​They estimate that the journey will take at least two weeks.
• Appraise: to examine someone or something in order to judge their qualities, success, or needs
• Example: At the end of each teaching practice, trainee teachers are asked to appraise their own performance.

​Hence from the given meaning and example, we find that the correct answer is: Estimate.

Additional Information

Let's look at the meanings of the other given options. 

• praise- express warm approval or admiration of.
• justify- show or prove to be right or reasonable.
• investigate- carry out research or study into a subject or problem.

The correct answer is Exclude

Key Points

• Let's look at the meaning of the word and the marked option.
• Incorporate- take in or contain (something) as part of a whole; include.
• Exclude: deny (someone) access to a place, group, or privilege.
• Example: ​The public was excluded from the board meeting.
• ​Hence from the given meaning and example, we find that the correct answer is: Exclude.

​

Additional Information

• Let's look at the meanings of the other given options. 
• Amalgamate- combine or unite to form one organization or structure.
• Enjoin- instruct or urge (someone) to do something.
• Dissect- methodically cut up (a body or plant) in order to study its internal parts.

The correct answer is Option 1) i.e. Encourage.

Key Points

Let's look at the meaning of the word and the marked option.

• Inhibit- prevent or prohibit (someone) from doing something.
• Encourage: Give support, confidence, or hope to.
• Example**:** ​When things aren't going well, he always encourages me.
• ​Hence from the given meaning and example, we find that the correct answer is: Encourage.

Let's look at the meanings of the other given options. 

• Hinder: to get in the way of (someone or something)
• Stop: to cease from doing (something)
• Constrain: to limit, restrict, or inhibit

The correct answer is Option 1) i.e. A very narrow margin.

The given idiom 'by the skin of one's teeth' means by a very narrow margin; only just.

• Example**:** ​I got away by the skin of my teeth.

The correct answer is Option 1) i.e. Cheat during play​.

The given idiom 'to play fast and loose' means behave irresponsibly or immorally.

• Example**:** He was accused of playing fast and loose with the truth.

​

Mistake point

• The 2^nd option looks appropriate but it extracts only the literal meaning and not the intended one.

The correct answer is Option 2) i.e. To start a conversation.

The given idiom 'to break the ice' means do or say something to relieve tension or get conversation going in a strained situation or when strangers meet.

• Example**:** ​On the morning of my audition I had to break the ice.

The correct answer is Option 2) i.e. Tentetive.

The correct spelling of the marked option is 'Tentative' which means not certain or fixed; provisional.

• Example: I have tentative plans to take a trip to Udaipur in July.

Let's look at the meanings of the other given options. 

• onerous- (of a task or responsibility) involving a great deal of effort, trouble, or difficulty.
• deleterious- causing harm or damage.
• parochial- having a limited or narrow outlook or scope.

The correct answer is Option 1) i.e. Ludicurous.

Key Points

• The correct spelling of the marked option is 'Ludicrous' which means so foolish, unreasonable, or out of place as to be amusing.
• Example: Some stories that initially seemed ludicrous turned out to be true.​

Additional Information

Let's look at the meanings of the other given options. 

• excruciate- torment (someone) physically or mentally.
• retribution- punishment inflicted on someone as vengeance for a wrong or criminal act.
• indolent- wanting to avoid activity or exertion; lazy.

The correct answer is Option 3) i.e. Connosseur.

The correct spelling of the marked option is 'Connoisseur' which means a person who knows a lot about and enjoys one of the arts, or food, drink, etc. and can judge quality and skill in that subject.

• Example: The mushrooms had the chewy, savory flavor preferred by connoisseurs.

Let's look at the meanings of the other given options. 

• accentuated- make more noticeable or prominent.
• stringent- (of regulations, requirements, or conditions) strict, precise, and exacting.
• prerogative- a right or privilege exclusive to a particular individual or class.

The correct answer is Option 3) i.e. adopted.

Let's look at the meaning of the options given below:

• Suggested- put forward for consideration.
• accepted- consent to receive or undertake (something offered).
• adopted- choose to take up, follow, or use.
• proposed- put forward (a plan or suggestion) for consideration by others.
• The given sentence conveys that Gandhiji followed or took up the path of non-violence.
• Hence the 3^rd option will be the most appropriate choice here.

Correct Sentence: *"**Gandhiji had adopted the path of non-violence."*​

Mistake point

• The other options can't be neglected completely but all of these are used when two or more persons are concerned.

The correct answer is Option 4) i.e. fictitious.

Let's look at the meaning of the options given below:

• Imaginative- having or showing creativity or inventiveness.
• unreal- imaginary or illusory.
• unreliable- not able to be trusted upon.
• fictitious- not real or true; imaginary or fabricated.
• The given sentence conveys that the characters didn't belong to the real world.
• Hence the 4^th option will be the most appropriate choice here.

Correct Sentence: *"*All the characters in this story are fictitious."

The correct answer is Option 4) i.e. No improvement.

Let's look at the explanation given below:

• The noun used just after the underlined part i.e. area, suggests that a particular spot has been talked about.
• In case of an exact or a particular location, the preposition 'at' is used.
• The only option that follows the desired structure is the 4^th option i.e. No improvement.

Correct Sentence: *"*The fact-finding team which had been at the area found the situation very grave."

Let's look at the difference between which and that:

• We use which is case of a defining clause whereas that is used for a non-defining clause.
• For example: 
• My bike that has a broken seat is in the garage.
• My bike, which has a broken seat, is in the garage.
• In the 1^st example, the subject may have two or more bikes and the particular bike is identifiable because of a broken seat.
• In the 2^nd example, the subject has only a single bike and the broken seat is simply a description of the bike in the garage.

The correct answer is Option 2) i.e. What happened.

Key Points

Let's look at the explanation given below:

• The given sentence commences with a word of 'wh-' family which is used for interrogative sentences.
• But the sentence is an assertive one as the sentence ends with a full stop rather than a question mark.
• The only option that follows the structure of an assertive sentence is the 2^nd option i.e. What happened.
• The sentence conveys that the subject isn't bothered about the event that took place there.

Correct Sentence: "What happened there earlier does not interest me."

The correct answer is Option 3) i.e. deplorably.

Let's look at the meaning of the word and the marked option.

• Miserly: in a pitiable or contemptible manner; terribly.
• Deplorably: deserving strong condemnation; completely unacceptable.
• Example**:** ​He behaved deplorably.

​Hence from the given meaning and example, we find that the correct answer is: deplorably.

Let's look at the meanings of the other given options. 

• admirably- in a way that arouses or deserves respect and approval.
• poorly- in a way that is unsatisfactory or inadequate.
• astonishingly- extremely surprisingly or impressively.

The correct answer is Option 3) i.e. Cotton growers.

Let's look at the 1^st line from the given paragraph: 

• "Reports of farmers dying from pesticide exposure in Maharashtra's cotton belt in Yavatmal make it evident that the government's efforts to regulate toxic chemicals used in agriculture have miserably failed."

​Upon perusal of the above statement, it can be concluded that​ cotton growers have suffered a very high level of exposure to pesticides.

The correct answer is Option 3) i.e. Genuine.

Let's look at the meaning of the word and the marked option.

• Spurious: not being what it purports to be; false or fake.
• Genuine: truly what something is said to be; authentic.
• Example: ​If it is a genuine Michelangelo drawing, it will sell for millions.

​Hence from the given meaning and example, we find that the correct answer is: genuine.

Let's look at the meanings of the other given options. 

• valuable- a thing that is of great worth, especially a small item of personal property.
• real- actually existing as a thing or occurring in fact; not imagined or supposed.
• stable- not likely to give way or overturn; firmly fixed.