SSC GD Constable Previous Year Paper (Held on: 9th March 2019 Shift 1)

Given series: J, N, R, V, ______

Pattern: Each letter has been succeeded by four letters.

J + 4 = N

N + 4 = R

R + 4 = V

V + 4 = Z

Hence, Z is correct.

The possible venn diagram for the above statements is as follows:

For Conclusions:

I. No houses is flower → True (All houses are rivers, all rivers are forests and no forests is flower is given. Therefore, no house is flower)

II. No flower is houses → (All houses are rivers, all rivers are forests and no forests is flower is given. Therefore, no flower is houses)

Hence, Both conclusions I and II follow is correct.

Earth is one of the planets.

The Sun is completely different from both. It is a Star.

Below given diagram shows the relationship among Earth, Planet and Sun.

Hence, Option 3 is correct.

Hence, option 2 is correct.

Pattern:

1. RYZ → R + 7 = Y, Y + 1 = Z
2. UBC → U + 7 = B, B + 1 = C
3. FGM → F + 7 = M ≠ G, M + 1 = N ≠ M
4. IPQ → I + 7 = P, P + 1 = Q

Hence, FGM is correct.

Except Service, all other options are the forms of businesses.

Service is not a form of business. 

Hence, 'Service' is correct.

Given series: 25, 100, 200, 800, 1600, ?

Pattern:

25 × 4 = 100

100 × 2 = 200

200 × 4 = 800

800 × 2 = 1600

1600 × 4 = 6400

Hence, 6400 is correct.

From the statements:

Lara is to the immediate right of Mona who is sitting at extreme left end.

Isha is to the immediate right of John.

Only Kanak is sitting between Honey and John. (This means, Kanak will sit to the immediate left of John and honey will sit to the immediate left of Kanak)

Thus, the final arrangement will be:

We can see that Isha is sitting at the extreme right end.

Hence, Isha is correct.

"Who" is used for the second person in a sentence.

For example, 

Lara is to the right of Mona, who is sitting at extreme left → It means Lara is to the right of Mona and Mona is sitting at extreme left end.

Pattern: The given letters of a code has been obtained by preceding the letters of the given word by three places.

Similarly,

Hence, CLKQ is correct.

The figure has been rotated in the clockwise direction at each step.

Thus, the below given image will complete the above series.

The complete series will be:

Hence, Option 4 is correct.

Given, 

Given Equation: 664 + 4 ÷ 34 × 28

New Equation: 664 ÷ 4 + 34 − 28

166 + 34 − 28

= 200 - 28

= 172

Hence, 172 is correct.

For Mirror Image: When the mirror is placed to the right of the figure then to get the mirror image, we simply flip the given figure from left to right. 

Hence, Option 1 is correct.

In the first Figure

27 is the cube of 3.

64 is the cube of 4.

Thus, the resultant is: 3 + 4 = 7

Similarly,

In the second Figure

343 is the cube of 7.

729 is the cube of 9.

Thus, the resultant will be: 7 + 9 = 16

Hence, 16 is correct.

Entomology is the study of Insects.

Similarly,

Phycology is the study of Algae.

Phycology is also called algology.

NOTE:

Hence, Phycology : Algae is correct.

Except 14 - 13, the sum of both the numbers of a pair is 25.

The Sum of 14 and 13 is 27, not 25.

Hence, 14 - 13 is correct.

The hidden/embedded figure has been shown in the below image.

Hence, Option 4 is correct.

Given: 12 : 62 : 14 : _____

12 → (12 × 5) + 2 = 62

Similarly, 

14 → (14 × 5) + 2 = 72

Hence, 72 is correct.

From the statements:

D is third to the left of A who is Second to the left of F.

E is not a neighbor of either F or D. (This means, E sits to the immediate left of A)

C is third to left of B. (This means, B and C will sit to the immediate left of F and E respectively)

Now, the remaining position i.e. to the immediate left of D will be occupied by G.

We can see that G sits second to the left of C.

Hence, second to the left is correct.

From the statements:

⇒ Baby is shorter than Anil.

Anil > Baby

⇒ Anil is taller than Sunny who is shorter than Baby.

Anil > Baby > Sunny

⇒ Anil is taller than Bose who is shorter than Sunny.

Thus, the final arrangement is as follows:

Anil > Baby > Sunny > Bose

We can see that Bose is the shortest.

Hence, Bose is correct.

Who is used for the second person in a connecting statement:

For example: 

Anil is taller than Sunny, who is shorter than Baby → It means Anil is taller than Sunny and Sunny is shorter than Baby.

Given: mmnnrstt : nnoostuu :: eefghhij : ?

Pattern: The letters in the second part have been obtained by adding one letter to the each of the letters in the first part.

Similarly,

Hence, ffghiijk is correct.

The logic follows here is:

Eiffel Tower is a monument situated in France.

Similarly, 

Taj Mahal is a monument situated in India.

Hence, "Taj Mahal : India" is the correct answer. 

Additional Information

Concept:

1. We have to check the conclusions are 100% match with the statement. If the conclusion is 100% match with the given statement then the conclusion is true. If there is a 1% chance of not following the statement then the conclusion is considered to be false.

2. The possibility case can be considered to be "false" in "definite case".

3. In Possibility case, either "can" or "possible" word must be present.

The possible venn diagram is as shown below:

For conclusions:

I. Some tables are beds → True (Some beds are chairs, all chairs are desks and all desks are tables. Therefore, some tables are beds)

II. Some desks are beds → True (Some beds are chairs, all chairs are desks and all desks are tables. Therefore, some desks are beds)

Hence, Both conclusions I and II follow is correct.

Additional Information

Given series: 14, 21, 42, 105, 315, ?

Pattern:

14 × 1.5 = 21

21 × 2 = 42

42 × 2.5 = 105 

105 × 3 = 315

315 × 3.5 = 1102.5

Hence, 1102.5 is correct.

The below given part of the image completes the given figure.

Hence, Option 2 is correct.

Logic: Each letter has been assigned with a unique code i.e. number.

Thus, code for the word 'DALMO' 

Hence, 17654 is correct.

The correct answer is Bharat.

Key Points

• India, also known as Bharat, is a Union of States.
• It is a Sovereign Socialist Secular Democratic Republic with a parliamentary system of government.

Additional Information

• ​Key Words In The Preamble:
• Sovereign:
• The term Sovereign which is proclaimed by the Preamble means that India has its own independent authority and it is not a dominion of any other external power.
• In the country, the legislature has the power to make laws that are subjected to certain limitations.
• Socialist:
• The term Socialist was added in the Preamble by 42nd Amendment, 1976 which means the achievement of socialist ends through democratic means.
• It is basically a Democratic Socialism that holds faith in a mixed economy where both the private and public sectors co-exist side by side.
• Secular:
• The term Secular was incorporated in the Preamble by the 42nd Constitutional Amendment, 1976 which means that all the religions in India get equal respect, protection, and support from the state.
• Democratic:
• The term Democratic implies that the Constitution of India has an established form of Constitution that gets its authority from the will of the people expressed in an election.
• Republic:
• The term Republic indicates that the head of the state is elected by the people directly or indirectly.
• In India, the President is the head of the state and he is elected indirectly by the people.

The correct answer is 19.

• Article 19 related to Right to freedom.
• The Right to freedom of speech and expression is a Fundamental Right under Article-19 of the Constitution of India.
• There are six rights regarding freedom:
• Speech and expression
• Assembly
• Association
• Movement
• Residence
• Profession

Additional Information

• Article 11 of the Indian constitution deals with Parliament to regulate the right of citizenship by law.
• Article 21 declares that no person shall be deprived of his life or personal liberty except according to procedure established by law. This right is available to both citizens and non-citizens.
• Article 15 deals with discrimination on the basis of caste, sex, or place of birth. It means that the state should not discriminate against any citizen on these grounds.

The correct answer is Kumar Sanu.

• Kedarnath Bhattacharya, a popular singer, is better known by the name Kumar Sanu.

Additional Information

• Other important pseudonyms are:
• Indian revolutionary Chandrasekhar Azad is often known by the pseudonym "Balraj".
• Rabindranath Tagore's pseudonym is Bhanusingha.
• Bengali litterateur Arabinda Guha, who is also known by his pseudonym Indramitra.

The correct answer is 1%.

Key Points

• The green plants in a terrestrial ecosystem capture about 1% of the energy of sunlight that falls on their leaves and converts it into food energy.
• When green plants are eaten by primary consumers, a great deal of energy is lost as heat to the environment, some amount goes into digestion and in doing work and the rest goes towards growth and reproduction. An average of 10% of the food eaten is turned into its own body and made available for the next level of consumers.
• Therefore, 10% can be taken as the average value for the amount of organic matter that is present at each step and reaches the next level of consumers.
• Since so little energy is available for the next level of consumers, food chains generally consist of only three or four steps. The loss of energy at each step is so great that very little usable energy remains after four trophic levels.
• There are generally a greater number of individuals at the lower trophic levels of an ecosystem, the greatest number is of the producers.

The correct answer is Punjab.

• The Jallianwalla bagh incident is also known as the Massacre of Amritsar in Punjab.
• The incident took place on April 13, 1919, on Baisakhi day.
• There was dissatisfaction against Rowalatt Act that led to mass agitation.
• The government was determined to suppress the mass.
• A large crowd was gathered in the Amristar on 13 April 1919 at Amristar in Jallianwalla Bagh, to protest against the arrest of their popular leaders Dr Saif-ud-din Kichlu and Dr Satyapal.
• On the afternoon of April 13, a crowd of at least 10,000 men, women, and children gathered in the Jallianwala Bagh, which was nearly completely enclosed by walls and had only one exit.

​ 

Additional Information

Jallianwala Bagh and its main Cause:

• Rowlatt act was enacted in early 1919 that gave power to the British to arrest any person without any trial.
• The arrest of Saifudeen Kitchlew and Satya Pal sparked protests and the mob killed several foreign nationals and severely beat a Christian missionary.
• Several people were gathered in the Jallianwala Bagh for the celebration of Baisakhi, and for peaceful protest.
• Due to the unrest in Amritsar after protests against the Rowlatt Act.
• General Dyer took a strike force and without warning, he ordered fire to be opened on the crowd.
• The firing resulted in death of several people of Punjab on the auspicious day of Baisakhi.

After Jalliawala Bagh:

• The government set up the Hunter Commission to inquire into the massacre
• The Hunter commission condemned the act by Dyer.
• But Commission did not impose any disciplinary action against him
• Jallianwala Bagh's issue was one of the three declared objectives of Mahatama Gandhi before he launched the Non-Cooperation Movement

The correct answer is DNA copying.

• DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses.
• DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule.
• Transcription is the process of copying the genetic information on the RNA from one of the DNA.

The correct answer is help to create more oxygen.

Key Points

• Phytoplanktons are like the terrestrial plants which float on the surface of the water, contain chlorophyll, and using sunlight perform photosynthesis.
• They produce oxygen as a result.
• Photosynthetic algae, which includes Phytoplankton, along with bacteria are the main sources of organic matter in the ocean.
• But Algae being produced in cold water biomes isn’t connected to Phytoplanktons producing high organic carbon in the ocean.

The correct answer is ​Manmohan Singh.

• Sanjay Baru is the author of the book named "The Accidental Prime Minister: the making and unmaking of Manmohan Singh”.
• The book traverses the journey of Dr Manmohan Singh, the former Prime Minister of India in office.
• He is a political commentator and policy analyst, currently serving as Secretary-General of the Federation of Indian Chambers of Commerce and Industry (FICCI).
• Sanjay Baru also the author of the book "1991: How P.V. Narasimha Rao Made History".

The correct answer is Bigha.

• Bigha is also a unit of measurement of land area varying locally.
• Raja Todar Mal is best known for the introduction of land measurements, Dahasala.
• In central India, Bighas were standardized at 3025 yd²(2529.3 m²) or 5/8 acre (0.2529 hectares).

Additional Information

• Different measuring units used in North and central India-
• A hectare is equal to 10,000 square meters and 2.471 acres in the British Imperial System.
• Biswa is a land measurement unit commonly used in Uttar Pradesh, Punjab, Haryana, Uttarakhand and Himachal Pradesh. Although the value varies from one place to another, 1 Biswa comes between the ranges 50-150 square yards.
• Biswani is a unit commonly used in Uttar Pradesh, Punjab, Haryana, Himachal Pradesh and Uttarakhand. It is calculated as 1 Biswa = 20 Biswanis.
• Killa denotes an acre of land in Punjab and Haryana.
• Gaj is a unit commonly used in Delhi, Punjab and Haryana. It denotes one square yard or 9 square feet.
• Kattha is a unit used in the states of Assam, Bihar, West Bengal & Madhya Pradesh.etc.

The correct answer is hair.

• Nettle plants contain stinging leaves that have a mixture of chemicals.
• If an animal touches the leaves, stinging hairs inject chemicals into the skin.
• The stinging hair of nettle leaves injects Methanoic acid.

The correct answer is Ravi Shastri.

• The present chief coach of the Indian cricket team is Ravi Shastri.
• Ravi Shastri is a former Indian Cricketer and commentator from Maharashtra.
• He bowled with his left hand and did batting with his right hand.
• 'Chapati Shot' was his trademark shot.
• He also served as UNICEF's Goodwill Ambassador after his retirement.
• Ravi Shastri was appointed as the head coach of the Indian National Cricket team and he will continue to be so till 2021.
• Sunil Gavaskar has never been a coach to the Indian cricket team.
• Kapil Dev coached the team in 1999-2000 and Garry Kirsten from 2008-11 (during the 2011 World Cup).

The correct answer is to reduce,** recycle, reuse.**

Key Points

• The Meaning of the three R's: 
• Reduce,
• Reuse, and
• Recycle.
• Reducing : Try to reduce the amount of waste produced, as this is the best way to help the environment.
• Reusing: New methods must be applied for reusing all the old stuff.
• Recycling : This enables the materials which are thrown away to be used again by making them into new products.
• Individuals' collective actions can make a tremendous impact on waste issues and give us the sense to be eco-friendly.
• These are the three essential components of environmentally-responsible consumer behavior
• The goal of the 3 R's is to educate people on how to prevent excessive and unnecessary waste and to limit the consumption of non-renewable resources.

The correct answer is M Karunanidhi.

• A statue of DMK leader M Karunanidhi was unveiled in Chennai recently.
• DMK chief M Karunanidhi died on 7th August 2018 in Chennai.
• Muthuvel Karunanidhi was an Indian writer and politician who served as Chief Minister of Tamil Nadu for five terms and twenty years between 1969 and 2011.
• He has also made contributions to Tamil literature, having written stories, plays, novels, and a multiple-volume memoir.

The correct answer is Bank of Baroda.

• The amalgamation of Vijaya Bank and Dena Bank with Bank of Baroda (BoB) came into effect from 1 April 2019.
• With amalgamation with BOB to create India's third-largest bank.
• According to the Amalgamation Scheme, Vijaya Bank shareholders would earn 402 BoB equity shares for every 1,000 shares owned.
• In Dena Bank's case, its shareholders will receive 110 BoB shares per 1,000 shares.
• The three-way merger announcement was among many reform initiatives undertaken by Financial Services Secretary Rajiv Kumar to make public-sector banks (PSBs) stable, robust and competitive globally.

The correct answer is Mamang Dai.

• Author Mamang Dai have won Sahitya Akademi award 2017 for their work The Black Hill, a novel.
• Sahitya Akademi announced its annual Sahitya Akademi Awards in 24 languages.
• The award in the form of a casket containing an engraved copper-plaque, a shawl and a cheque of Rs 1 lakh.
• Sahitya Akademi Fellowship is the highest literary honor conferred by the Sahitya Akademi on a writer, by electing him as its Fellow.
• It was established in 1968.
• The first elected fellow was Dr. Sarvepalli Radhakrishnan.
• Shashi Tharoor won the Sahitya Akademi award 2019 for the book “An Era of Darkness” in English.
• Chinmoy Guha, a Bengali writer has won the Sahitya Akademi award 2019 for his essay “Ghumer Darja Thele”.

The correct answer is truth.

• Gandhi said The Truth is far more powerful than any weapon of mass destruction.
• Gandhism is a philosophy which has ideas to inspire and to create the vision.
• It is associated with the idea of nonviolence resistance which is also called civil resistance.
• The two pillars of Gandhism are truth and non-violence i.e Satyagraha and Ahimsa.
• The Gandhian principles have been included in the Directive Principles of State Policy in the Constitution.

Additional Information

• Movements Started by Gandhiji in India:
• Champaran Satyagraha of 1917
• Kheda Satyagrah of 1918
• Khilafat Movement Post World War I
• Non-Co-operation Movement
• Civil Disobedience Movement
• Negotiations over Round Table Conferences
• Gandhi Irwin Pact
• Quit India Movement

The correct answer is price stability.

Key Points

• The primary objective of monetary policy is to maintain price stability while keeping in mind the objective of growth. 
• Price stability is a necessary precondition to sustainable growth.
• RBI Act, 1934 was amended in May 2016  to provide a statutory basis for the implementation of the flexible inflation-targeting framework.
• Inflation-Targeting means to control price or to maintain price stability.
• Inflation target to be set by the Government of India, in consultation with the RBI, once in every five years.
• The inflation target of monetary policy is 4% Consumer Price Index with an upper tolerance limit 6% and lower tolerance limit of 2%.

The correct answer is water current in rivers.

• Electric current is associated with the movement of electrons which is from lower potential(negative) to higher potential(positive), therefore, the direction of electric current is opposite to that of conventional current.
• In the same way, water flows in the rivers from a higher altitude to lower side, so we can compare both.
• Even though electric current has direction, it is not a vector quantity as the addition of electric current follows the laws of ordinary algebra and not the laws of vector algebra.
• The SI unit of electric current is Ampere (A).
• Electric current (I) = Q/t = Charge/time
• An instrument called ammeter measures electric current in a circuit.

The correct answer is They both try to promote economic stability.

• Fiscal policy of India always has two objectives, namely improving the growth performance of the economy and ensuring social justice to the people.
• Fiscal policy is the means by which a government adjusts its spending levels and tax rates to monitor and influence a nation's economy. It is the sister strategy to monetary policy through which a central bank influences a nation's money supply.
• Some of the major instruments of fiscal policy are as follows: Budget, Taxation, Public Expenditure, public revenue, Public Debt, and Fiscal Deficit in the economy.
• Objectives of Fiscal Policy are given below:
• To maintain and achieve full employment.
• To stabilize the price level.
• To stabilize the growth rate of the economy.
• To maintain equilibrium in the Balance of Payments.
• To promote the economic development of underdeveloped countries.
• Monetary policy in the United States comprises the Federal Reserve's actions and communications to promote maximum employment, stable prices, and moderate long-term interest rates--the economic goals the congress has instructed the Federal Reserve to pursue.
• Monetary Policy: 
• It refers to the management of money supply for achieving macroeconomic objectives such as controlling inflation, consumption, growth, and liquidity.
• In India, the Reserve Bank of India (RBI) is vested with the responsibility of conducting monetary policy. This responsibility is explicitly mandated under the Reserve Bank of India Act, 1934.
• The primary objective of monetary policy is to maintain price stability while keeping in mind the objective of growth.
• Both policies try to promote economic stability.

The correct answer is Kerala.

• Ottamthullal is an art form performed only in Kerala.
• The meaning of Ottamthullal is 'poor man's Kathakali'.
• Kunchan Nambiar created this dance form, as an alternative to the Chakyar koothu.
• To protest against the prevalent socio-political structure and prejudices of the society, Kunchan Nambiar used it as a medium.
• Now it is a famous folk art presented in the temples of Kerala.
• Some other dance forms of Kerala:
• Theyyam
• Thiruvathirakali
• Chakyar Koothu
• Koodiyattam
• Kathakali(Classical)
• Mohiniattam(Classical).

The correct answer is Rikako Ikee.

Key Points

• Japanese swimmer Ikee Rikako has been named as the Most Valuable Player (MVP) of the 18th edition of Asian Games.
• She became the first female athlete to win the MVP title. Rikako bagged six gold and two silver medals in the tournament.
• She received $50,000 as prize money.

Additional Information

• Katsumi Nakamura is a Japanese swimmer. He competed in the men's 4 × 100-metre freestyle relay event at the 2016 Summer Olympics.
• Zhang Lin is a retired Chinese competitive male swimmer.
• Ryosuke Irie is a Japanese competitive swimmer.

The correct answer is waterways.

• Waterways are the cheapest mode of service.
• The amount of loading and unloading goods is much cheaper if it has to travel a long distance.
• Inland waterways
• ​Navigable rivers and lakes are used as inland waterways.
• The Great Lakes in North America, the Ganga – Brahmaputra river system and the river Nile in Africa are some of the important inland waterways.
• Seaways
• ​These are the oceanic routes and used for transporting goods from one country to another.
• These routes are connected with the ports.
• Some of the important ports in Asia are Mumbai and Singapore, New York, Los Angeles in North America, Rio de Jenario in South America, and Sydney in Australia.

Additional Information

• Roadways are the most commonly used means of transport, especially for short-distance travel.
• Roads may be metalled or unmetalled.
• There is a dense network of roads in the plains.
• Roads can be built in deserts, high mountains, and forests too.
• Roads built underground are called subways or under paths.
• Railways are economical and faster.
• Steam engines have been replaced by diesel and electrical engines.
• Railway network is well developed in plain areas.
• It is present in hilly terrain too, but not as much as in the plain areas.
• Airways 
• ​It is the most expensive mode due to the high cost of fuel.
• It is vulnerable to bad weather like fog and storms.
• It is the only mode to reach even the most distant and remote locations which do not have a road/rail network.

The correct answer is To sustain the principle of secularism.

• Article 25 of the Indian constitution guarantees the Right to Freedom of Religion to its citizens.
• It provides freedom of conscience and free profession, practice, and propagation of religion.
• It is a basic human right guarantee that cannot be subverted or misinterpreted in any manner.
• Article 25 to Article 28 of the Indian constitution deals with the Right to Freedom of Religion.
• The objective of the Constitutional Right to Freedom of Religion in India is to sustain the principle of secularism.

Additional Information

• Secularism:
• The term secular has been derived from the Latin word ‘seculum’ which means an age, an indefinite period, or the present age.
• Secularism in the Indian context means first, ‘Dharmanirapaksata’ or impartiality to religion and secondly, ‘Sarva Dharma Sama Bhava’ or equal respect for all religions based on the principle of accommodation of all religions.
• A Secular State does not identify itself with any particular religion but protects and respects all faiths until they become a danger to the unity and integrity of the country.
• The most essential factors of secularism were granting equal status to all religions in India.
• Indian secularism is a multi-value character and gives importance to moral reasoning and equally respecting all religions.
  

The correct answer is turmeric.

• Turmeric is used as an indicator.
• It is yellow in acid & neutral substance but turns bright red with bases.
• Turmeric, litmus, china rose petals (Gudhal), etc., are some of the naturally occurring indicators.

Additional Information

• Other indicators are:

The correct answer is Saraswati.

• Kumbha Mela is a mass Hindu pilgrimage of faith in which Hindus gather to bathe in a sacred or holy river.
• The main festival site is located on the banks of a river:
• the Ganges (Ganga) at Haridwar;
• the confluence (Sangam) of the Ganges and the Yamuna and the invisible Saraswati at Allahabad (Prayagraj).
• the Godavari at Nasik and
• the Shipra at Ujjain.
• This fair is held every 12 years at every place.
• And in Prayag, Ardh Kumbh is also organized in 6 years interval between 2 Kumbh festivals.
• Ardh Kumbh has been organized in Prayagraj in the year 2019.
• And in the year 2022, Kumbh Mela will be organized in Haridwar.​

Given:

Circular garden of radius 15 m.

 A path of 2 m wide has to be made inside the garden at the rate of Rs. 24 per sq. 

Formula used:

Area of Garden = Π(R² – r²)

Calculation:

R = 15 m

r = (15 – 2) = 13 m

According to the question:

Area of Garden = Π(R2 – r2)

⇒ 22/7 × (15² – 13²)

⇒ 22/7 × (225 – 169)

⇒ (22/7) × 56

⇒ 22 × 8 = 176 cm²

Total cost = 24 × 176 = Rs. 4224

∴ The cost of making the path is Rs. 4224. 

 Shortcut Trick

Option method:- 

We know that the cost of making the path is always divisible on 11 (because of  22/7). 

If the number of digits of a number is even, then add the first digit

and subtract the last digit from the rest of the number.

We can clearly see that there is only one option(3) that is performing

the divisibility rule of 11.{ (4 + 2) - ( 2 + 4 ) = 0}

Given:

Mode = 24

Mean = 60

Formula used:

Mean - Mode = 3(Mean - median)

Calculation:

Let Median be x.

(60 - 24) = 3(60 - x)

⇒ 36/3 = (60 - x)

⇒ 12 = (60 - x)

⇒ 60 - 12 = x

⇒ x = 48

∴ The median is 48.

Given:

50% of a certain number is equal to $\frac{3}{4}^{th}$ of another number.

Calculation:

Let the numbers be x and y.

According to the question:

(50% of x) = [(3/4) × y]

⇒ 50x/100 = 3y/4

⇒ x/2 = 3y/4

⇒ x/y = 3/2

⇒ x : y = 3 : 2

∴ The ratio between the numbers are 3 : 2.

Given:

The outer Radius of the hollow cylinder is 4 cm.

Height is 2 cm.

Thick is 1 cm. 

Formula used:

The volume of hollow cylinder = Outer Volume – Inner Volume 

= πR²h – πr²h 

Calculation:

Outer Radius(R) = 4 cm

Inner Radius(r) = (4 – 1) cm = 3 cm.

According to the question:

πR2h – πr2h 

⇒ πh(R² – r²)

⇒ (22/7) × (4² – 3²) × 2

⇒ (22/7) × 7 × 2

⇒ 44 cm³

 ∴ The volume of metal used is 44 cm³.    

Shortcut Trick

Option Method:- 

We know that the volume of a hollow cylinder is always divisible by the 11 rule ( because of π = 22/7 ) 

we can clearly see that there is only one option(3) that is performing the divisibility rule of 11 (4 × 11 ).

Given:

The ratio of time taken by A and B to cover a certain distance is 7 : 9

Concept used:

Speed = Distance/Time

Time is inversely proportional to speed.

The ratio of time is 7: 9

∴ The ratio of speed is 9 : 7.

Total units of laptop sold by company A = 650

Total units of laptop sold by company B = 300

Total units of laptop sold by company C = 150

Average number of laptop sold by the Companies = $\frac{{650 + 300 + 150}}{3}$

⇒ $\frac{{1100}}{3} = 366\frac{2}{3}$

∴ Required average is  $366\frac{2}{3}$

Give:

779, 943, 123

Concept used:

Prime factorization method of L.C.M

Calculation:

Prime Factorization of 779 = 41¹ × 19¹

Prime Factorization of 943 = 41¹ ×  23¹

Prime Factorization of 123 = 41¹ × 3¹

LCM = 41 × 19 × 23 × 3

 ⇒ 779 × 69 = 53751

∴ Required LCM is 53751

Given:

Discount percentage = 23%

Profit percentage = 10%

Concept used:

CP/MP = (100 – Discount%)/(100 + Profit%)

Calculation:

CP/MP = (100 – 23)/(100 + 10)

⇒ CP/MP = 77/110

⇒ CP/MP = 7/10

MP – CP = 10 – 7 = 3

⇒ $\frac{3}{{10}} \times 100 = 30\%$

∴ Required percentage is 30%

Calculation:

⇒ Units produced by company A = 900 units

⇒ Unit sold by company A = 650 units

⇒ Sale percentage in respect to production = $\frac{{650}}{{900}}\%$ 

⇒ $\frac{{650}}{{900}}\% = 72.22\%$

⇒ Units produced by company B = 700 units

⇒ Units sold by company B = 300 units

⇒ Sale percentage in respect to production = $\frac{{300}}{{700}}\%$

⇒ $\frac{{300}}{{700}}\% = 42.86\%$

⇒ Units produced by company C = 300 units

⇒ Unit sold by company C = 150 units

⇒ Sale percentage in respect to production = $\frac{{150}}{{300}}\%$

⇒ $\frac{{150}}{{300}}\% = 50\%$

Hence, Company B's percentage of sale of units with respect to its production is between 40% and 43%

Given:

Total distance = 50 km

Formula used:

${\rm{Speed}} = \frac{{{\rm{Distance}}}}{{{\rm{Time;taken}}}}$

Calculation:

Let the speed of train A be x km/h

${\rm{x}} = \frac{{50}}{{\frac{{30}}{{60}}}}$

⇒ ${\rm{x}} = \frac{{50}}{{\frac{{1}}{{2}}}}$

⇒ x = 100

The speed of train A is 100 km/h

According to the question,

Speed of train B is 40% more than train A

100 × 140% = 140

Speed of train B 140 km/h

Train A : Train B = 100 : 140

⇒ Train A : Train B = 5 : 7

∴ Required ratio of train A and train B is 5 : 7

Shortcut Trick

100 Train B = 140 Train A (Speed of the train B is 140% of train A)

⇒ 5 Train B = 7 Train A

⇒ Train B/Train A = 7/5

The ratio of speed of train A train B = 5 : 7

∴ The required ratio of train A and train B is 5 : 7

Given:

Units produced = 900, 700, 300

Formula used:

Average = Sum of the terms/Number of terms.

Calculation:

Average = (900 + 700 + 300)/3

⇒ 1900/3 = $633\frac{1}{3}$

∴ The average number of Units produced by all the Companies together are $633\frac{1}{3}$.

Given:

A, B and C contract a work for Rs. 550 together

A and B are supposed to do 7/11 of the work.

Calculation:

Work done by  C= [1 – (7/11)]

⇒ 4/11

The ratio of (A + B) : C

⇒ 7/11 : 4/11

⇒  7 : 4

According to the question:

A, B and C contract a work for Rs. 550 together. 

The share of C = [(4/11) × 550]

⇒ 200

∴ C will get Rs. 200.

Given:

 20% of A = 35% of B

Calculation:

 20% of A = 35% of B

⇒ (20/100) × A = (35/100) × B

⇒ A/5 = 7B/20

⇒ A/B = (7/20) × 5

⇒ A/B = 7/4

⇒ A : B = 7 : 4

∴ The vale of A : B is 7 : 4.

Given:

$\frac{4}{5} \div \frac{4}{5};of\frac{1}{{10}} \times \frac{1}{{10}}$

Concept:

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

Calculation:

$\frac{4}{5} \div \frac{4}{5};of \frac{1}{{10}} \times \frac{1}{{10}}= ?$

⇒ $\frac{4}{5}; \div ;\frac{4}{{50}}; \times ;\frac{1}{{10}} = ?$

⇒ $\frac{4}{5} \times \frac{50}{4}\ \times \frac{1}{{10}}= ?$

⇒ $10\times ;\frac{1}{{10}} = ?$

⇒ ? = 1

∴ Required number is 1

Given:

Principal = Rs. 500

Rate of interest = 12% and 10%

Total interest after 4 years = Rs. 480

Formula used:

SI =${\rm{;}}\frac{{{\rm{P}} \times {\rm{T}} \times {\rm{R}}}}{{100}}$

Calculation:

Let the other sum of money be Rs. x

According to the question,

$480 = {\rm{;}}\frac{{500 \times 4 \times 12}}{{100}} + ;\frac{{x \times 4 \times 10}}{{100}}$

⇒ $480 = 240 + ;\frac{{2x}}{{5}}$

⇒ $240 =;\frac{{2x}}{{5}}$

⇒ 2x = 1200

⇒ x = 600

∴ The other sum of money is Rs. 600

Alternate Method

12% for 4 years = 48%

48% of Rs. 500 = Rs. 240

(480 – 240) = Rs. 240 is the interest for the other sum in 4 years

10% for 4 years = 40%

According to the question,

40% = Rs. 240

⇒ 100% = Rs. 600

∴ The other sum is Rs. 600

Given:

Selling price = Rs. 480

Loss% = 20%

Profit% = 20%

Formula used:

C.P = (S.P × 100)/(100- loss%)

S.P = [C.P × (100 + profit)]/100

Calculation:

C.P = (480 × 100)/(100 - 20)

⇒ (480 × 100)/80

⇒ Rs. 600

Again S.P = (600 × 120)/100

⇒ Rs. 720

∴ The Selling price is Rs. 720.

Given:

$\left( {\frac{1}{{;9}} ÷ ;\frac{1}{9};of;\frac{1}{3}} \right)of;\frac{1}{6};$

Concept used:

Follow the BODMAS rule according to the table given below:

Calculation:

$\left( {\frac{1}{{;9}} ÷ ;\frac{1}{9};of;\frac{1}{3}} \right)of;\frac{1}{6};$

⇒ [(1/9) ÷ (1/27)] of (1/6)

⇒ [(1/9) × (27/1)] of 1/6

⇒ [(3) of (1/6)]

⇒ 1/2

∴ The value of ? is 1/2.

Given:

The average of 2 numbers is ab.

Formula used:

Average = (Sum of the terms/Number of the terms)

Calculation:

Let the number be x.

According to the question:

(a + x)/2 = ab

⇒ a + x = 2ab

⇒ x = 2ab - a

∴ The other number be 2ab - a

Given:

Cycle is decreased by 20%

Then the selling is increased by 20%. 

Formula used:

Loss% = (Loss × 100)/Cost price

Calculation:

Let earlier sale be Rs. x

And earlier price be Rs. y

The earlier revenue be Rs. xy

According to the question:

New price = Rs. y × (80/100)

⇒ Rs. 4y/5 

New sale = Rs. x × (120/100)

⇒ Rs. 6x/5

New revenue = (4y/5) × (6x/5)

⇒ 24xy/25

Loss = (xy – 24xy/25)

⇒ (25xy – 24xy)/25

⇒ xy/25

Loss% = (xy × 100)/(25 × xy)

⇒ 4%

∴ The impact on the receipt of the revenue is 4% loss.

[x + y + (xy/100)]

Here:

x = – 20%

y = + 20%

⇒ [–20 + 20 – (20 × 20/100)]

⇒ – 4%

Loss = 4%

∴ The impact on the receipt of the revenue is 4% loss.

Given:

X is twice as good as Y

Together they finish the work in 18 days

Concept used:

$\frac{1}{{{\rm{Days;required;by;X}}}} + \frac{1}{{{\rm{Days;required;by;Y}}}} = \frac{1}{{{\rm{Total;days;required;by;all;the;workers}}}}$

Calculation:

Let Y takes 2a days to complete the work

Then, X takes a days [X is twice as good as Y]

$\frac{1}{{\rm{a}}} + \frac{1}{{2{\rm{a}}}} = \frac{1}{{18}}$

⇒ $\frac{{2 + 1}}{{2{\rm{a}}}} = \frac{1}{{18}}$

⇒ $\frac{{3}}{{2{\rm{a}}}} = \frac{1}{{18}}$

⇒ 54 = 2a

⇒ a = 27

∴ Time X takes 27 days and Y takes 54 days to complete the work.

Alternate Method

⇒ Efficiency of X = 2

⇒ Efficiency of Y = 1

⇒ Total Work = 18 × 3

⇒ Days required by X = 54/2 = 27 days

⇒ Days required by Y 54/1 = 54 days

∴ Time taken by X and Y to complete the work are 27 days and 54 days

Given:

The ratio of the present age of Mahesh and Ajay is 3 : 2 respectively.

Ratio of their age will after 8 years 11: 8.

Calculation:

Let The present age of Mahesh be 3x years.

And The present age of Ajay be 2x years.

According to the question;

The ratio of their age will 8 years from now will be 11: 8,

⇒ (3x + 8)/(2x + 8) = 11/8

⇒ 8 × (3x + 8) = (2x + 8) × 11 

⇒ 24x + 64 = 22x + 88

⇒ 24x – 22x = 88 –64

⇒ 2x = 24

⇒ x = 12

So, The present age of Ajay = 2x years = 2 × 12 = 24 years

∴ Mahesh's Son age = 24/2 = 12 years.

Given:

Principal = Rs. 2000

Rate of interest = 10%

Formula used:

${\rm{A}} = {\rm{P}}{\left( {1 + {\rm{;}}\frac{{\rm{r}}}{{100}}} \right)^{\rm{n}}}$

Calculation:

Principal is Rs 2000 and rate of interest is 10%

⇒ ${\rm{2000}}{\left( {1 + {\rm{;}}\frac{{\rm{10}}}{{100}}} \right)^{\rm{2}}} - {\rm{2000}}{\left( {1 + {\rm{;}}\frac{{\rm{10}}}{{100}}} \right)^{\rm{1}}}$

⇒ $2000{\left( {\frac{{110}}{{100}}} \right)^2} - 2000\left( {\frac{{110}}{{100}}} \right)$

⇒ $\left( {2000 \times \frac{{121}}{{100}}} \right) - 2200$

⇒ 2420 – 2200 = 220

∴ Interest for the second year is Rs. 220

Alternate Method

10% of Rs. 2000 = Rs. 200

We know the tree method for solving this type of questions

First year's interest = 200

Second year's interest = 200 + 20      ----(10% of 200)

∴ Interest for the second year is Rs. 220

Given:

The ratio of the sides of a triangle is 6 : 4 : 3

The perimeter of the triangle = 104 cm

Concept:

The perimeter of a triangle = sum of the length of all the sides of a triangle

Calculation:

Let sides are 6x cm, 4x cm and 3x cm

6x + 4x + 3x = 104 cm

⇒ 13x = 104 cm

⇒ x = 8

⇒ 6x = 48

∴ The length of the longest side is 48 cm

Given:

There are 4 adults and the consumption of rice per month = 10 kg per head.

The average consumption of rice per head per month is 8.5 kg.

The average consumption for adults is 10 kg per head and for minor it is 5.5 kg per head.

Solution:

Let the number of minors be x.

Number of adults = 4

Total consumption of adults = 4 × 10 kg = 40 kg

Total consumption of minors = 5.5 × x = 5.5x kg

According to the question:

(40 + 5.5x)/(4 + x) = 8.5

⇒ 40 + 5.5x = 34 + 8.5x

⇒ 40 – 34 = 8.5x – 5.5x

⇒ 3x = 6

⇒ x = 2

 ∴ The number of minors in the family is 2.

Given:

Two adjacent sides of a parallelogram are 12 cm and 9 cm.

And one of the angle is 30°

Formula used:

Area of parallelogram = ab × sinθ  

Where, a and b are two adjacent sides.

Calculation:

a = 12 cm

b = 9 cm 

θ = 30° 

Area of parallelogram = ab × sinθ 

⇒ 12 × 9 × sin30° = 12 × 9 × (1/2)

⇒ 6 × 9 =54 cm²

∴ The area of parallelogram is 54 cm².

The correct answer is 'winsome'. 

Key Points

• The most appropriate word to fill in the given fill in the blank is 'winsome'.
• Winsome: attractive and pleasing, with simple qualities, sometimes like those a child has
• Example: Maria brought along her eldest daughter - a winsome girl with brown eyes and a ready smile.
• 'Winsome manners' is an attractive and pleasing manner.
• Therefore, by reading the above explanation we find that the correct answer is Option 3. 
  

​

Correct Sentence: By her winsome manner, she made herself liked by everyone who meets her. 

Hinglish

• रिक्त स्थान की पूर्ति के लिए सबसे उपयुक्त शब्द 'winsome' है।
• Winsome (मनोहर): आकर्षक और मनभावन, सरल गुणों के साथ, कभी-कभी उन बच्चों की तरह
• उदाहरण: मारिया अपनी सबसे बड़ी बेटी को साथ ले आई - भूरी आँखों वाली एक आकर्षक (winsome) लड़की और एक तैयार मुस्कान।
• 'Winsome manners' आकर्षक और मनभावन तरीका है।
• इसलिए, उपरोक्त स्पष्टीकरण को पढ़कर हम पाते हैं कि सही उत्तर Option 3 है।

Additional Information

• Let's look at the meaning and examples of the other words: 
• | Sublime | extremely good, beautiful, or enjoyable (बहुत अच्छा, सुंदर, या आनंददायक) | The book has sublime descriptive passages. | | --- | --- | --- | | Curious | interested in learning about people or things around you (अपने आस-पास के लोगों या चीजों के बारे में जानने में रुचि रखते हैं) | I was curious to know what would happen next. | | Victorious | having won a game, competition, election, war, etc. (एक खेल, प्रतियोगिता, चुनाव, युद्ध आदि जीतना।) | The German player emerged victorious after a long five-hour match. |

The correct answer is 'Obscure'. 

Key Points

• The antonym of the given word 'Evident' is 'Obscure'.

• Let's look at the meaning and examples of the given words: 

• | Evident | easily seen or understood (आसानी से देखा या समझा गया)
  | The full extent of the damage only became evident the following morning. | | --- | --- | --- | | Obscure | not known to many people (बहुत से लोगों को नहीं पता) | Official policy has changed, for reasons that remain obscure. | | Apparent | able to be seen or understood (देखने या समझने में सक्षम) | Her unhappiness was apparent to everyone. | | Conspicuous | very noticeable or attracting attention, often in a way that is not wanted (बहुत ध्यान देने योग्य या ध्यान आकर्षित करने वाला, अक्सर इस तरह से जो वांछित नहीं है) | He tried not to look conspicuous and moved slowly along the back of the room. | | Noticeable | easy to see or recognize (देखने या पहचानने में आसान) | There has been a noticeable improvement in Tim's cooking. |

• Therefore, by reading the above explanation we find that the correct answer is Option 3.

The correct answer is 'Irritate'. 

Key Points

• The synonym of the given word 'Annoy' is 'Irritate'.

• Let's look at the meaning and examples of the given words: 

• | Annoy | to make someone angry | Tina really annoyed me in the meeting this morning. | | --- | --- | --- | | Irritate | to make someone angry or annoyed | After a while, her behavior really began to irritate me. | | Please | used to make a request more polite | Please remember to close the windows before you leave. | | Satisfy | to please someone by giving them what they want or need | They have 31 flavors of ice cream - enough to satisfy everyone! | | Gratify | to please someone, or to satisfy a wish or need | We were gratified by the response to our appeal. |

• Therefore, by reading the above explanation we find that the correct answer is Option 3.

 Hinglish

• दिए गए शब्द 'Annoy' का पर्याय 'Irritate' है।

• आइए दिए गए शब्दों का अर्थ देखें:

• | Annoy | किसी को क्रोधित करना | | --- | --- | | irritate | किसी को नाराज या नाराज करना | | Please | अनुरोध को अधिक विनम्र बनाने के लिए उपयोग किया जाता है | | Satisfy | किसी को खुश करने के लिए उन्हें वह दें जो वे चाहते हैं या जरूरत है | | Gratify | किसी को प्रसन्न करना, या किसी इच्छा या आवश्यकता को पूरा करना |

• इसलिए, उपरोक्त स्पष्टीकरण को पढ़ने से हमें पता चलता है कि सही उत्तर विकल्प 3 है।

The correct answer is 'Eccentric'. 

Key Points

• The most appropriate one-word for the given group of words is 'Eccentric'.

• Let's look at the meaning and examples of the given words: 

• | Conventional | traditional and ordinary (पारंपरिक और साधारण) | I find his art dull and conventional. | | --- | --- | --- | | Eccentric | strange or unusual, sometimes in a humorous way (अजीब या असामान्य, कभी-कभी विनोदी तरीके से) | My mother is something of an eccentric. | | Wholesome | good for you, and likely to improve your life either physically, morally, or emotionally (आपके लिए अच्छा है, और आपके जीवन को शारीरिक, नैतिक या भावनात्मक रूप से बेहतर बनाने की संभावना है) | He looks like a nice, wholesome young man. | | Traditional | following or belonging to the customs or ways of behaving that have continued in a group of people or society for a long time without changing (रीति-रिवाजों या व्यवहार के तरीकों का पालन करना या उनका पालन करना जो लोगों या समाज के समूह में बिना बदले लंबे समय तक जारी रहे) | The school uses a combination of modern and traditional methods for teaching reading. |

• Therefore, by reading the above explanation we find that the correct answer is Option 2.

Hinglish

• दिए गए शब्दों के समूह के लिए सबसे उपयुक्त एक शब्द है 'Eccentric' (विलक्षण व्यक्ति).

The correct answer is 'to'. 

Key Points

• The most appropriate preposition to fill in the blank is 'to'.
• Here, in the given question 'according to' is a phrase.
• 'According to' means ‘as reported by’ or ‘as stated by’ and refers to an opinion which is not the speaker’s opinion. According to usually occurs in the front position. It is commonly followed by a noun phrase and sometimes by a clause. 
• Example: According to the instructions, you’ll need to buy some glue.
• 'According to' also means ‘depending on’ or ‘in agreement with’. 
• Example: They take a test and are then put into groups according to their ability.
• Therefore, by reading the above explanation we find that the correct answer is Option 1. 
  

​

Correct Sentence: The wages of daily workers are fixed according to their skills. 

Hinglish

• रिक्त स्थान को भरने के लिए सबसे उपयुक्त पूर्वसर्ग है 'to'.
• यहाँ, दिए गए प्रश्न में 'according to' ('के अनुसार') एक वाक्यांश है।
• 'According to' का अर्थ है 'जैसा कि बताया गया है' या 'जैसा कि कहा गया है' और एक राय को संदर्भित करता है जो स्पीकर की राय नहीं है। के अनुसार आमतौर पर सामने की स्थिति में होता है। यह आमतौर पर एक संज्ञा वाक्यांश और कभी-कभी एक खंड द्वारा पीछा किया जाता है।
• उदाहरण: निर्देशों के अनुसार(According to), आपको कुछ गोंद खरीदने की आवश्यकता होगी।
• 'According to' इसका अर्थ 'के आधार पर' या 'समझौते में' भी है।
• उदाहरण: वे एक परीक्षा लेते हैं और फिर उनकी क्षमता के अनुसार (According to) समूहों में डाल दिए जाते हैं।
• इसलिए, उपरोक्त स्पष्टीकरण को पढ़कर हम पाते हैं कि सही उत्तर Option 1 है।

The correct answer is 'To gain confidence'. 

Key Points

• The most appropriate meaning of the given idiom 'To take heart' is 'to feel encouraged'.
• To take heart: to feel encouraged
• Example: Take heart. You'll be done soon, and you won't have to think about this paper ever again.
• Therefore, by reading the above explanation we find that the correct answer is Option 3.

Hinglish

• दिए गए मुहावरे का सबसे उपयुक्त अर्थ 'To take heart' है 'प्रोत्साहित महसूस करना'.
• To take heart: प्रोत्साहित महसूस करना
• उदाहरण*: Take heart (*हिम्मत न हारना)। आपका काम जल्द ही पूरा हो जाएगा, और आपको इस पेपर के बारे में फिर कभी सोचने की ज़रूरत नहीं होगी।
• इसलिए, उपरोक्त स्पष्टीकरण को पढ़कर हम पाते हैं कि सही उत्तर Option 3 है।

Additional Information 

• Let's look at the meaning and examples of other idioms of the word 'take':

• | Idiom | Meaning | Sentence | | --- | --- | --- | | Take the first/second place | to be the most important thing/a less important thing (सबसे महत्वपूर्ण चीज होना / कम महत्वपूर्ण चीज होना) | Work takes second place. | | Take the centre stage | to be at the centre of attention (ध्यान के केंद्र में होना) | She always likes to take centre stage in whatever she does. | | Take charge (of something) | to accept responsibility for something and have control over it (किसी चीज के लिए जिम्मेदारी स्वीकार करना और उस पर नियंत्रण रखना) | She took charge of the project and made sure it was finished on time. |

• 'To take heart' and 'take to heart' are completely different with no points of similarity in their meanings.

• 'To take heart' means to feel confident and encouraged about something and 'take to heart' means take to be deeply affected or hurt by something

The correct answer is 'much things'. 

Key Points

• The given sentence is grammatically incorrect.
• Here, we should use 'many things' instead of 'much things'.
• We use the quantifiers much and many to talk about quantities, amounts, and degree.
• We can use them with a noun (as a determiner) or without a noun (as a pronoun).
• We use much with singular uncountable nouns and many with a plural noun.
• Example: 
• I haven’t got much change. I’ve only got a ten euro note.
• Are there many campsites near you?
• Here, in the given question 'things' is a plural countable noun. Hence, 'many' should be used instead.
• Therefore, the correct answer is Option 2. 
  

​

Correct Sentence: One of the advantages of weekly markets is that many things are available at one place. 

Hinglish

• दिया गया वाक्य व्याकरण की दृष्टि से गलत है।
• यहाँ, हमें उपयोग करना चाहिए 'many things' instead of 'much things'.
• हम प्रयोग करते हैं much singular uncountable nouns तथा many तथा a plural noun.
• यहाँ, दिए गए प्रश्न में 'चीजें' (things) एक बहुवचन गणनीय संज्ञा (plural countable noun) है। अतः इसके स्थान पर 'कई' (many) का प्रयोग करना चाहिए।
• इसलिए, सही उत्तर विकल्प 2 (option 2) है।

Additional Information

• Much of, many of:
• When we use much or many before articles (a/an, the), demonstratives (this, that), possessives (my, your), or pronouns (him, them), we need to use of.
• Examples: 
• How much of this book is fact and how much is fiction?
• ​Unfortunately, not many of the photographers were there.

The correct answer is 'are displaced'. 

Key Points

• The most appropriate word to fill in the blank is 'are displaced'.
• Two single actions at the same time / one immediately after another = when.
• Now, when we have two single actions that happen at the same time or one happens right after another one, then we tend to use when.
• For example, "I picked up the phone when it rang."
• Another good example would be "When I get home, I take off my shoes".
• That’s also two single actions. I get home and I take off my shoes. When I get home, I take off my shoes. Or you could say it the other way, I take off my shoes when I get home.
• Here, the first clause of the sentence is in the passive voice. Therefore, the second part will also be in the passive voice.
• Therefore, the correct answer is Option 4. 
  

​

Correct Sentence: When dams are built, thousands of people are displaced. 

Hinglish

• रिक्त स्थान की पूर्ति के लिए सर्वाधिक उपयुक्त शब्द है 'are displaced'.
• एक ही समय में दो एकल क्रियाएं / एक के तुरंत बाद एक = when.
• अब, जब हमारे पास दो एकल क्रियाएं (two single action) होती हैं जो एक ही समय में होती हैं या एक के बाद एक ठीक होती है, तो हम कब का उपयोग करते हैं।
• यहाँ वाक्य का प्रथम उपवाक्य (first clause sentence) निष्क्रिय स्वर (passive voice) में है। इसलिए दूसरा पार्ट (second part) भी पैसिव वॉयस (passive voice) में होगा।
• अतः सही उत्तर विकल्प 4 (option 4) है।

सही वाक्य:- When dams are built, thousands of people are displaced.