DSSSB TGT Maths (Male) 23 Sep 2018 Shift 1 (Previous Year Paper)

The Logic followed is: 

• The correct answer is Option 3: Providing adequate first aid if any wound occurs and taking her back home.​

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• Qualities Projected in this situation:  (Sense of responsibility,

Effective intelligence, and speed of decision).

Key Points

• Checklist for attempting Course of Action questions:​

1. Read the question and options carefully.
2. Look for options that are realistic, optimistic, and reflect officer-like qualities.
3. Do not skip any situation.
4. Relegate the negative sentences and choose the most logical option among the remaining ones. As time is an important factor, hence your thinking ability should be swift.
5. React quickly and be logical.​

The logic followed is:

Given:

i) Today is Sindhu's birthday.

Let Sindhu's age today be = x years

ii) One year from today.

Then, Sindhu's age after 1 year = (x + 1) years.

A.T.Q,

iii) One year from today, she will be twice as old as she was 14 years ago.

x + 1 = 2 (x - 14)

x + 1 = 2x - 28

x = 28 + 1

x = 29 years

Hence, the correct answer is "29 years".

As we can see the given figure is embedded in Option 4. 

Hence, the correct answer is "Option 4".

The logic followed is:

First number = (Second number)² - 2 

Option 1 → 51-7

51 = (7)² - 2

51 = 49 - 2

51 ≠ 47

Option 2 → 34-6

34 = (6)² - 2

34 = 36 - 2

34 = 34

Option 3 → 79-9

79 = (9)² - 2

79 = 81 - 2

79 = 79

Option 4 → 14-4

14 = (4)² - 2

14 = 16 - 2

14 = 14

Hence, the correct answer is "Option 1".

From the diagram given below:

The shaded part represents the directors who are neither actors nor Singers.

Hence, the correct answer is "6".

The pattern followed is:

Given series:

The elements inside the box are moving 900 clockwise in each step.

There is only one image that is an option 2, that satisfies the rotation in the correct manner. 

Hence, the correct answer is "Option 2".

The pattern followed is:

Hence, the correct answer is "W".

The logic followed is:

In all the figures except figure D, the outer small figure is the same as the figure that is made inside.

Option 1 →

Inner figure = circle

outer small figure = circle

Both the figures are the same.

Option 2 →

Inner figure = triangle

outer small figure = triangle

Both the figures are the same.

Option 3 →

Inner figure = pentagon

outer small figure = pentagon

Both the figures are the same.

Option 4 →

Inner figure = circle

outer small figure = square

Both the figures are not the same.

Hence, the correct answer is "Option 2".

Given:

NTSE percentage from "XYZ" in 2010 = 120

NTSE percentage from "XYZ" in 2013 = 60

Calculation:

According to the question:

The ratio of NTSE percentage from "XYZ" in 2010 & 2013 = 120 : 60

⇒ 2 : 1

∴ The ratio of NTSE percentage from "XYZ" in 2010 & 2013 is 2 : 1.

Given equation: 16T2P7S10R3 = ?

After replacing the symbols by their meaning, we get

= 16T2P7S10R3

= 16 ÷ 2 × 7 - 10 + 3

= 8 × 7 - 10 + 3

= 56 - 10 + 3

= 59 - 10

= 49

Hence, "49" is the correct answer.

All conditions are as follows;

Fatima fulfills all the conditions except condition (b) as she is 28 years old.

But, She follows the criteria (iv) and referred to as Senior Engineer.

Hence, She will be referred for "Senior-engineer"

μ

The logic followed is:

The wheels of cars are made circular for the purpose of reducing the frictional force.

The rolling friction is lesser than sliding friction, therefore, wheels are made circular in shape.

Had the wheels been of any other kind of shapes like Rectangle, Square, or Triangular then sliding friction would have come into play and that would have caused more friction and more resistance in the movement of cars and automobiles. 

This is why the car wheel is always in Circular shapes.

Hence, the correct answer is "Circular". 

Additional Information

Rolling friction:

• The force resisting the motion of a rolling body on a surface is known as rolling friction or rolling resistance.
• The Rolling of a ball or wheel on the ground is an example of Rolling friction.

Laws of Rolling friction: 

• With the increase in smoothness, the force of rolling friction decreases.
• Rolling friction is expressed as a product of load and constant to the fractional power.
• F = k Ln

Causes of Rolling friction:

When an object is rolled on a surface, certain things happen:

The object is deformed at the point of contact with the surface.

The surface is deformed at the point of contact with the object.

The motion is created below the surface as a result of the above-mentioned points.

Coefficient of Rolling Friction: 

• “Coefficient of Rolling Friction is the ratio of the force of rolling friction to the total weight of the object.”
• In empirical terms, the coefficient of rolling resistance can be expressed as:
• F_r = μ W

The feminine of Dog is Bitch

Similarly; 

The feminine of the Male bee is Bee or Honey Bee.

Hence, "Bee" is the correct answer.

Preparing the family tree using the following symbol:

According to the given information,

Madhu is sister of Namrata.

Namrata’s brother’s mother is also the mother of Madhu.

Hence, "Mother" is the correct answer.

The given figure when folded is as follows:

Hence, option (4) is the correct answer.

The pattern follows here is;

Hence, "139" is the correct answer.

According to the English alphabet series and its positional value:

The logic follows here is:

LOGIC: Numeratot/Denoninator = Letter/Positional Value of Letter

1. Position value of T = 20

So, the first term is:

2. Positional value of E = 5

So, the second term is:

3) Positional value of A = 1

So, the third term is:

From options:

4) Positional value of B = 2

So, the fourth term is:

Hence, option (4) is the correct answer.

1) Cricket : Court →

The area of grass (within the boundary) on which a cricket match is played is called Arena or Stadium not court.

2) Skating : Rink →

Rink is an enclosed area of ice for skating, ice hockey, or curling.

3) Wrestling : Arena →

A wrestling ring or Arena is the stage on which a professional wrestling match usually occurs. It is similarly constructed to a boxing ring and is traditionally square-shaped.

4) Exercise : Gymnasium →

A gymnasium, also known as a gym, is a covered location for athletics.  A gym is a place with a number of equipment and machines used by people to do exercises.

Hence, "Cricket : Court" is the correct answer.

The pattern follows here is;

The inner dot of the circle rotates at 90° clockwise in each step:

Step 1:

Step 2: 

Step 3: 

So, the next term of the series is:

Hence, option (2) is the correct answer.

Let, Number of girls in class = p

Number of boys = 4 × p

Total number of children = p + 4p

= 5p

Let's check each option one by one:

1. If total number of children = 50

5p = 50

p = 10

2) If total number of childrene = 45

5p = 45

p = 9

3) If total number of children = 42

5p = 42

p = 8.4

Number of girls i.e. p is not in decimal form.

So, 42 cannot be the total number of children in the class

4) If the total number of children = 60

5p = 60

p = 12

Hence, "42" is the correct answer.

The correct answer is 2010.

• The National Green Tribunal was established in the year 2010.
• National Green Tribunal (NGT) was established on 18th October 2010 under the NGT Act of 2010 as a specialized body for handling any environmental disputes that involve multi-disciplinary issues.
• It was formed by replacing the National Environment Appellate Authority.
• It also draws inspiration from Article 21 of the Indian Constitution which assures to provide a healthy environment to the citizens of India.
• India has become the third country in the world after Australia and New Zealand, for setting up a specialized environmental tribunal and also the first developing country to do so.
• The National Green Tribunal has a total of five places of sittings namely: Bhopal, Pune, New Delhi, Kolkata, and Chennai, amongst which, New Delhi is the Principal place of sitting.
• The Chairperson of the National Green Tribunal (NGT) is appointed by the Central Government of India in accordance with the Chief Justice of India.
• A Selection Committee is formed by the central government of India for the appointment of Judicial Members and Expert Members.

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• Justice Adarsh Kumar Goel is the chairperson of the National Green Tribunal (NGT) who took over in 2018.

The correct answer is 1993.

• Members of Parliament Local Area Development Scheme (MPLADS) was introduced in the year 1993.
• It was launched in December 1993, to provide a mechanism for the Members of Parliament to recommend works of developmental nature for the creation of durable community assets and for the provision of basic facilities including community infrastructure, based on locally felt needs.
• Initially, the Scheme was under the control of the Ministry of Rural Development and Planning.
• In October 1994, the scheme was transferred to the Ministry of Statistics & Programme Implementation.
• The MPLADS is a Plan Scheme fully funded by the Government of India.
• The annual MPLADS fund entitlement per MP constituency is Rs. 5 crores.
• According to the ‘Guidelines on Members of Parliament Local Area Development Scheme (MPLADS)’ published by the Ministry of Statistics and Programme Implementation in June 2016, the MPLAD funds can also be used for implementation of the schemes such as Swachh Bharat Abhiyan, Accessible India Campaign (Sugamya Bharat Abhiyan), conservation of water through rainwater harvesting and Sansad Aadarsh Gram Yojana, etc.

The correct answer is Reaching the Unreached Through Science & Technology.

• The theme for 105th India Science Congress is “Reaching the Unreached through Science and Technology”.
• In 2018, the focus was on translational science for promoting affordable sustainable innovation.
• The ISC 2018 was organised by the Indian Science Congress Association (ISCA), a premier scientific organisation of India.
• This was 2nd time the Science Congress was being held in the northeast.
• Earlier it was held at Shillong (Meghalaya) in 2009.
• Approximately, 5,000 delegates from all over the country and 2,000 scientists along with four Nobel Laureates participated in the mega event.
• Under the mentioned theme, scientists from across the world looked at bridging social gaps through innovations.
• Its thrust was on science disciplines that impacted society and sustainable development.

• ISCA was started in the year 1914 at its headquarters in Kolkata.
• It organises the Indian Science Congress annually in the first week of January.
• The first meeting of the ISCC was held in January 1914 in the Asiatic Society, Kolkata.
• The theme of the congress for 2020 is “Science & Technology: Rural Development”.
• The theme for the Indian Science Congress Association (ISCA) 2021 is 'Science and technology for sustainable development with women's empowerment,”

The correct answer is with the consensus of the political parties.

• The set of norms governing the code of conduct for elections in India was developed with the consensus of the political parties.
• Election Commission of India's Model Code of Conduct is a set of guidelines issued by the Election Commission of India for the conduct of political parties and candidates during elections mainly with respect to speeches, polling day, polling booths, portfolios, election manifestos, processions and general conduct.
• This set of norms has been evolved with the consensus of political parties who have consented to abide by the principles embodied in the said code in its letter and spirit.
• The Model Code of Conduct comes into force immediately on the announcement of the election schedule by the commission for the need of ensuring free and fair elections.
• Its main purpose is to ensure that ruling parties, at the Centre and in the States, do not misuse their position of advantage to gain an unfair edge.
• It is designed to avert practices that are deemed corrupt under the model code of conduct.
• For example, politicians should not make hate speeches, putting one community against another or make promises about new projects that may sway a voter.

The correct answer is excessive grazing.

Key Points

• Excessive grazing causes extensive soil erosion.
• Soil Erosion is the process that erodes, breaks or gradually diminishes things down.
• The process of erosion usually takes place on the surface of soil, rock, or dissolved material from one location on the Earth’s crust and with the help of the wind or water flow, it gets to settle down at another location.
• Flowing water, rainwater, and wind are the prime agents which cause a significant amount of soil loss each year.
• Too much soil erosion causes serious loss of topsoil and also reduces crop production potential, lower surface water quality, and damaged drainage networks.

Causes of Soil Erosion

• Running water is one of the main cause of soil erosion. Some soil erosion causes are mentioned below.
• Due to Soil Texture- If the texture is loose that is the soil contains more small grains and of open structure erodes faster.
• Slope- Soil present in a steeper slope more than the soil present at a plane level of the ground.
• Intensity or Amount of Rainfall- More intense rain, more erosion. This can be a bit slow if there are more trees present in the land as the roots of the plants hold soil in a firm manner.
• Human Activities- Agricultural practices, deforestation, roads and urbanization and global warming are a few major causes of soil erosion.
• Deforestation- Mismanaged utilization of soil resources like the removal of forest cover causes soil erosion heavily. Due to increasing land demand, the human is more into deforesting lands. Tree roots act as a binder of the top layer of the soil. And excess over grazing by animals.

Additional Information

The correct answer is Limiting freedom of trade.

• Among the given options, limiting freedom of trade is a false statement.
• Competition Commission of India is a statutory body responsible for enforcing the objectives of the Competition Act, 2002.
• CCI was established by the Central Government with effect from 14th October 2003, but it became fully functional on 20th May, 2009.
• Composition- A Chairperson and 6 Members appointed by the Central Government.
• It aims at establishing a competitive environment in the Indian economy through proactive engagement with all the stakeholders, the government, and international jurisdiction
• Objectives-
• ​To prevent practices that harm the competition.
• To promote and sustain competition in markets.
• To protect the interests of consumers.
• To ensure freedom of trade.

The correct answer is Radian.

Key Points

• Among the given options the unit of measurement, radian is not named in the honour of a scientist.
• It is the SI unit for measuring angles and is the standard unit of angular measure used in many areas of mathematics.
• The unit was formerly an SI supplementary unit (before that category was abolished in 1995) and the radian is now an SI derived unit.
• The radian is defined in the SI as being a dimensionless value, and its symbol is accordingly often omitted, especially in mathematical writing.
• One radian is defined as the angle subtended from the center of a circle which intercepts an arc equal in length to the radius of the circle.

Additional Information

• Ampere- The ampere, often shortened to amp, is the base unit of electric current in the International System of Units. It is named after Andre-Marie Ampere.
• Farad- The farad (symbol: F) is the SI-derived unit of electrical capacitance, the ability of a body to store an electrical charge. It is named after the English physicist Michael Faraday.
• Hertz- The hertz (symbol: Hz) is the derived unit of frequency in the International System of Units (SI) and is defined as one cycle per second. It is named after Heinrich Rudolf Hertz.

The correct answer is Satavahana.

• Among the given dynasties, Satavahana belonged to South India.
• The reign of the Satavahana Dynasty began in the mid-1st century BCE and came to an end in the early 3rd century CE.
• The area of the Satavahana Dynasty is debated where some historians argue that the Satavahanas initially established their hold over the area around Pratishthana (modern Paithan) in the western Deccan, and expanded from there into the eastern Deccan, Andhra, and the western coast.
• The term “Satvahana” originated from the Prakrit which means ” driven by seven” which is an implication of the Sun God’s chariot that is driven by seven horses as per Hindu mythology.
• The first king of the Satavahana dynasty was Simuka.

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• Sena Dynasty- The Sena Empire was a Hindu dynasty during the early medieval period on the Indian subcontinent, that ruled from Bengal through the 11th and 12th centuries.
• Maukhari Dynasty- The Maukhari dynasty was a post-Gupta royal Indian dynasty that controlled vast areas of Northern India for over six generations. They earlier served as vassals of the Guptas and later by Harsha's Vardhana dynasty.
• Pratiharas Dynasty- The Gurjara-Pratihara dynasty was an imperial power during the Late Classical period on the Indian subcontinent, that ruled much of Northern India from the mid-8th to the 11th century. They ruled first at Ujjain and later at Kannauj.

The correct answer is Council.

• FSDC stands for 'Financial Stability and Development Council.'
• The Financial Stability and Development Council (FSDC) is a non-statutory apex council under the Ministry of Finance constituted by the Executive Order in 2010.
• The Raghuram Rajan committee (2008) on financial sector reforms first proposed the creation of FSDC.
• It is chaired by the Finance Minister and its members include the heads of all Financial Sector Regulators (RBI, SEBI, PFRDA & IRDA), Finance Secretary, Secretary of Department of Economic Affairs (DEA), Secretary of Department of Financial Services (DFS), and Chief Economic Adviser.
• In 2018, the government reconstituted FSDC to include the Minister of State responsible for the Department of Economic Affairs (DEA), Secretary of Department of Electronics and Information Technology, Chairperson of the Insolvency and Bankruptcy Board of India (IBBI) and the Revenue Secretary.
• FSDC sub-committee is headed by the Governor of RBI.
• Objectives
• The objective of FSDC is to strengthen and institutionalize the mechanism for maintaining financial stability, enhancing inter-regulatory coordination and promoting financial sector development.
• It also intends to monitor macro-prudential supervision of the economy. It will assess the functioning of the large financial conglomerates.

The correct answer is Printing of Gazette is outsourced as per rule.

• Among the given options, the statement in option 1 is incorrect.
• The Gazette of India is a public journal and an authorised legal document of the Government of India, published weekly by the Department of Publication, Ministry of Housing and Urban Affairs.
• As a public journal, the Gazette prints official notices from the government.
• It is authentic in content, accurate and strictly in accordance with the Government policies and decisions.
• The Gazette is printed by the Government of India Press.
• The publication of the gazette is executed as per the government of India (allocation of business rules) issued from time to time by the cabinet secretariat.
• The Department of Publication is headed by the controller of publications with the assistance of two assistant controllers, one financial officer and an assistant director.
• The gazette employs more than 270 people under the supervision of the Ministry of Urban Development, headquartered in Nirman Bhawan, New Delhi.

The correct answer is Himachal Pradesh.

• Among the given options, Himachal Pradesh stands at odd.
• Rhododendron campanulatum  is the state flower of Himachal Pradesh.
• Karnataka, Haryana and Jammu Kashmir's state flower is Lotus.
• Lotus (Nelumbo Nucifera Gaertn) is the National Flower of India.
• It is a sacred flower and occupies a unique position in the art and mythology of ancient India and has been an auspicious symbol of Indian culture since time immemorial.

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Additional Information

The correct answer is 4.

• Based on the past seismic history, the Bureau of Indian Standards grouped the country into four seismic zones namely Zone-II, Zone-III, Zone-IV and Zone-V.
• Of all these four zones, Zone-V is the most seismic active region whereas Zone-II is the least.

• The seismic zoning map of India helps in identifying the lowest, moderate as well as highest hazardous or earthquake-prone areas in India.
• Also, such maps are used or looked at before the construction of high rise building so as to check the level of seismology in any particular area. In the long run, this helps in saving lives.

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• Zone-V covers entire northeastern India, some parts of Jammu and Kashmir, some parts of Ladakh, Himachal Pradesh, Uttarakhand, Rann of Kutch in Gujarat, some parts of North Bihar and Andaman & Nicobar Islands.
• Zone-IV covers the remaining parts of Jammu & Kashmir, Ladakh and Himachal Pradesh, Union Territory of Delhi, Sikkim, northern parts of Uttar Pradesh, Bihar and West Bengal, parts of Gujarat and small portions of Maharashtra near the west coast and Rajasthan.
• Zone-III comprises Kerala, Goa, Lakshadweep islands, remaining parts of Uttar Pradesh, Gujarat and West Bengal, parts of Punjab, Rajasthan, Madhya Pradesh, Bihar, Jharkhand, Chhattisgarh, Maharashtra, Odisha, Andhra Pradesh, Tamil Nadu and Karnataka.
• Zone-II covers the remaining parts of the country.

The correct answer is sectoral and segmented approach of health service delivery.

• Among the given options, option 1 is not correct.
• Ayushman Bharat Programme is an umbrella health scheme of the Government of India.
• It was launched in 2018 by Prime Minister Narendra Modi.
• It is to address health issues at all levels – primary, secondary, and tertiary.
• It has two components:
• ​​Pradhan Mantri Jan Arogya Yojana (PM-JAY), earlier known as the National Health Protection Scheme (NHPS).
• Health and Wellness Centres (HWCs).
• Ayushman Bharat is the largest government-funded healthcare programme in the world with over 50 crore beneficiaries.
• It provides coverage of 5 lakhs per family per year, for secondary and tertiary care hospitalization across public and private empanelled hospitals in India.
• Coverage: Over 10.74 crore poor and vulnerable entitled families (approximately 50 crore beneficiaries) are eligible for these benefits.
• Provides cashless access to health care services for the beneficiary at the point of service.
• Few states including Delhi, Telangana, West Bengal and Odisha are not covered in this scheme.

The correct answer is 27th June.

• Since 2017, United Nation General Assembly, observes 27th June as the International Micro, Small and Medium-sized Enterprises Day to raise public awareness of their contribution to sustainable development goals.
• The objective of the day is to recognize the importance of MSMEs in achieving sustainable development goals and in promoting innovation, creativity and sustainable work for all.
• For achieving the Sustainable Development Goals, Governments across the globe are required to create an environment for promoting innovation and creativity. For this, the importance of Micro, Small, and Medium-sized Enterprises needs to be recognized.
• As per the International Council for Small Business data, MSMEs on average contribute 50 percent in the GDP and generate 70 percent employment in an economy.
• Most of the employment generated by MSMEs is for the vulnerable sectors of our society.

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MSME Day 2020

• At the time of a global pandemic when millions across the world had lost their jobs, MSMEs were creating the most significant employment and income generation opportunities, especially in rural areas. But as countries across the globe have been imposing nationwide or partial lockdown, the business of the MSMEs have also affected significantly. Their primary obstacle has been a lack of access to financial support.
• In 2020, MSME day is to raise awareness and remind the governments of the important role that MSMEs have played in their economy over the decades. Reviving the MSME sector through financial support can revive the overall economy of a country.

The correct answer is India won the ODI series 4 - 2.

• Among the given options, India won the ODI series 4 - 2 is incorrect.
• The series was held in Jan-Feb 2018.
• South Africa won the Test series 2 - 1.
• India won the T20I series 2 - 1.

 Board of Control for Cricket in India (BCCI) 

• The Board of Control for Cricket in India (BCCI) is the national governing body for cricket in India. The board was formed in December 1928 as a society, registered under the Tamil Nadu Societies Registration Act.
• The BCCI is India's richest sporting body and the richest cricket board in the world. BCCI does not depend on the Government of India for its finances. Hence BCCI is not a government body.
• BCCI headquarters are in Wankhede Stadium, Churchgate, Mumbai, Maharashtra, India.
• Current President- Saurav Ganguly.

The correct answer is Telangana.

Key Points

• The Telangana state government launched India’s first Blockchain District in Hyderabad, which would provide a complete ecosystem for the growth of blockchain technology.
• The state government has signed MoUs with Tech Mahindra, Nucleus Vision, and Eleven01 Foundation for the implementation**.**
• The move is to strengthen the blockchain ecosystem in the State that will position Telangana as a leading destination of blockchain hub in the world.
• Blockchain District will be a cluster of buildings, which will bring together all relevant players together.
• The Telangana government would allocate land and other infrastructure for the cluster, which would provide platform and technology assistance to all the incubators in the blockchain district.

Additional Information

• Blockchain is a system of recording information in a way that makes it difficult or impossible to change, hack, or cheat the system.
• A blockchain is essentially a digital ledger of transactions that is duplicated and distributed across the entire network of computer systems on the blockchain using cryptography.
• Each block in the chain contains a number of transactions, and every time a new transaction occurs on the blockchain, a record of that transaction is added to every participant’s ledger.
• Usage of blockchain technology-
• Payment processing and money transfers
• Monitor supply chains
• Retail loyalty rewards programs
• Digital IDs
• Data sharing
• Copyright and royalty protection
• Digital voting
• Real estate, land, and auto title transfers
• Tax regulation and compliance
• Medical record keeping.

The correct answer is Basketball.

Key Points

• Rajasthan is a state in northern India.
• Its capital is Jaipur.
• The state covers an area of 342,239 square kilometres (132,139 sq mi) or 10.4 percent of the total geographical area of India.
• It is the largest Indian state by area and the seventh largest by population.
• Rajasthan comprises most of the wide and inhospitable Thar Desert (also known as the "Great Indian Desert").
• Basketball is the official Game of Rajasthan State.

Additional Information

• Other state symbol of Rajasthan-
• Rohida (Tecomella undulata) is the official state Flower of Rajasthan.
• Godawan or Great Indian Bustard is the official state bird of Rajasthan.
• Khejri (Prosopis Cineraria) is the official tree of Rajasthan State.
• Ghoomar is the official dance of Rajasthan State.

The correct answer is Anand Math.

Key Points

• Bankim Chandra Chattopadhyay wrote the national song 'Vande Mataram', which was a part of his novel Anandamath (1882).
• It is a political novel depicting a Sanyasi army fighting the British soldiers.
• The poem was first sung by Rabindranath Tagore in the 1896 session of the Indian National Congress.
• The first two verses of the song were adopted as the National Song of India in October 1937 by the Congress Working Committee prior to the end of colonial rule in August 1947.
• On 24 January 1950, the Constituent Assembly of India has adopted "Vande Mataram" as a national song.
• On the occasion, the first President of India, Rajendra Prasad stated that the song should be honoured equally with the national anthem of India, "Jana Gana Mana".

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Additional Information 

• Bankim Chandra Chattopadhyay was born on June 27, 1838, in Naihati in West Bengal to an orthodox Bengali Brahmin family.
• Durgeshnandini (1865) and Kapalkundala (1866) were his first major publications.
• Both the novels were well received and translated into other languages as well.
• Devi Chaudhurani is a Bengali novel written by Bankim Chandra Chatterji and published in 1884.​
• Bankim was critical of British rule and often used to criticize the government in his writings and publications.
• Bankim Chandra died on April 8, 1894.
• In his lifetime, he wrote numerous novels, stories, and essays, and his works were translated into several languages.

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The correct answer is Adult men's education.

Key Points

• Dadabhai Naoroji founded the Gyan Prasarak Mandali (Society for Promotion of Knowledge) in the year 1848.
• Its main objectives were to provide the education of adult menfolk.

Additional Information 

• Dadabhai Naoroji, also known as the "Grand Old Man of India".
• He was among the first leaders who stirred national consciousness in the country.
• He was closely involved with the Indian National Congress in its early phase.
• He helped in founding the ‘London Indian Society’  in 1865 and the ‘East India Association’ in 1866.
• In 1885, Naoroji became a vice-president of the Bombay Presidency Association.
• He was Congress president thrice, in 1886, 1893, and 1906.
• He was the first Asian to become a ‘British MP’ when he was elected to the House of Commons in 1892.
• He was the key proponents of “Drain Theory”, disseminating it in his book “Poverty and Un-British Rule in India”.
• He argued that imperial Britain was draining away India’s wealth through exploitative economic policies.
• He acted as a mentor to Mahatma Gandhi, Bal Gangadhar Tilak and Gopal Krishna Gokhale.

The correct answer is France.

Key Points

• The International Bureau of Weights and Measures (BIPM) is an intergovernmental organization.
• Through which its 59 member-states act together on measurement standards in four areas:
• Chemistry,
• Ionizing radiation,
• Physical metrology, and
• Coordinated universal time.
• The headquarter is based in Saint-Cloud, Paris, France.
• The current director of Martin Milton. (as of June 2021)
• The Official languages of BIPM are French and English.

Additional Information

• The International Bureau of Weights and Measures (BIPM) was created on 20^th May 1875, following the signing of the Metre Convention, a treaty among 17 Member States (as of November 2018 there are now as of 2021 there are 59 members).
• The BIPM has the mandate to provide the basis for a single, coherent system of measurements throughout the world, traceable to the International System of Units (SI).
• The BIPM has an important role in maintaining accurate worldwide time of day.
• It combines, analyses, and averages the official atomic time standards of member nations around the world to create a single, official Coordinated Universal Time (UTC).

Given:

Pipe A can fill a tank in 8 hours

Pipe B can fill a tank in 12 hours

Pipe C can empty the tank in 6 hours

Formula used:

Work done = Time × Efficiency

Time ∝ 1/Efficiency

Calculation:

In one hour pipe, A can fill 1/8

In one hour pipe B can fill 1/12

In one hour pipe C can empty 1/6

If pipe A and B opened for 2 hours

(1/8 + 1/12) × 2

⇒ (5/24) × 2 = 5/12

Part of tank not filled

1 - 5/12 = 7/12

Now pipe C is opened

5/24 - 1/6 = 1/24

1/6 part will be filled in

(7/12)/(1/24)

⇒ 7 × 2 = 14 hours

The tank will be filled completely in

14 + 2 = 16 hours

∴ 16 hours is the right answer.

Given:

Sides of a triangle = 30 cm, 28 cm and 26 cm

Formula used:

Area of a triangle = $√{s(s \ - \ a)(s \ - \ b)(s \ - \ c)}$

Semiperimeter(s) = $\dfrac{a \ + \ b \ + \ c}{2}$

Area of a triangle = 1/2 × Base × Altitude

Calculation:

The semiperimeter of the triangle is

$\dfrac{30 \ + \ 28 \ + \ 26}{2}$ = 42

Area of the triangle

= $\sqrt{42(42 \ - \ 30)(42 \ - \ 28)(42 \ - \ 26)}$

⇒ $\sqrt{42\ × \ 12\ × \ 14\ × 16}$ = √112896 = 336 cm²

The largest altitude will be on side 26 cm

336 = 1/2 × 26 × Altitude

⇒ Altitude = 672/26 = 25.8 cm

∴ The longest altitude is 25.8 cm

Given:

HCF = 36

Sum of two number = 1260

Concept used:

If the number is 36a and 36b, then a and b will be co-prime number

Calculation:

Let the number be 36a and 36b

36a + 36b = 1260

⇒ 36(a + b) = 1260

⇒ a + b = 35

Now, lets find out co-prime pair of 35

(1, 34), (3, 32), (4, 31), (6, 29), (8, 27), (9, 26), (11, 24), (12, 23), (13, 22), (16, 19) and (17, 18)

But (1, 34) does not make both numbers of 3- digits

And (3, 32), (3, 32), (4, 31) and (6, 29) make one of the numbers of 4 digits

So, (8, 27), (9, 26), (11, 24), (12, 23), (13, 22), (16, 19) and (17, 18) satisfy the condition

∴ There will be 7 possible pairs.

Given 

Principal (P) = Rs 4800

Rate of interest (R) = 8% per annum

Time(t) = 30 months = 2.5 years

Formula Used 

Amount = $P(1 \ + \ \frac{r}{100})^t$

Compound interest = Amount - Principal

Calculation

Interest for 1st year

⇒ Amount = $4800(1 \ + \ \frac{8}{100})^1$

⇒ Amount = $4800( \frac{108}{100})$ = Rs. 5184

Interest = 5184 - 4800 = Rs. 384

Interst for second year

⇒ Amount = $5184(1 \ + \ \frac{8}{100})^1$

⇒ Amount = $5184( \frac{108}{100})$ = Rs. 5598.72

Interest = 5598.72 - 5184 = Rs. 414.72

Interest for 3rd year

⇒ Amount = $5598.72(1 \ + \ \frac{8}{100})^1$

⇒ Amount = $5598.72( \frac{108}{100})$ = Rs. 6046.61

Interest = 6046.61 = 5598.72 = 447.85

Interest for half year = 447.85/2 = Rs. 223. 92

Total interest for 30 months

384 + 414.72 + 223. 92 = Rs = 1022.64 ≈ Rs. 1023

∴ The correct answer is Rs. 1023

Given:

Selling price of article A = Rs. 1888

Profit on article A = 18%

Selling price of article B = Rs. 1440

Loss on article B = 10%

Formula used:

Profit% or Loss% = {(Profit or Loss)/Cost Price} × 100

Calculation:

Cost price of article A is

118% = 1888

⇒ 100% = 1888 × (100/118)

⇒ 100% = Rs. 1600

Cost price of article B is

90% = 1440

⇒ 100% = 1440 × (100/90)

⇒ 100% = Rs. 1600

Total cost price = 1600 + 1600 = Rs. 3200

Total selling price = 1888 + 1440 = Rs. 3328

Profit = 3328 - 3200 = Rs. 128

Profit% = (128/3200) × 100 = 4%

∴ The overall profit  is 4%.

Given:

The ratio of number of boys and girls = 5 : 7

In the next session, 250 boys and 450 girls joined

Calculation:

Let the ratio of boys and girls be 5x : 7x

According to the question

$\dfrac{5x \ + \ 250}{7x \ + \ 450} = \dfrac{2}{3}$

⇒ 15x + 750 = 14x + 900

⇒ x = 150

The number of girls now

7 × 150 + 450 = 1500

∴ The number of girls now is 1500.

Given:

A boat can cover 12 km upstream and 15 km downstream in $3\dfrac{1}{2}$ hours

And can cover 9 km upstream and 5 km downstream in 2 hours

Formula used:

Speed = Distance/Time

Upstream = speed of the boat - speed of the stream

Downstream = speed of the boat + speed of the stream

Calculation:

Let the speed of the boat in still water and the speed of the stream be x km/h and y km/h respectively

Speed in upstream = x - y km/h

Speed in downstream = x + y km/h

According to the question

$\dfrac{12}{ x \ - \ y} + \dfrac{15}{ x \ + \ y} = \dfrac{7}{2}$      ----(i)

Now,

$\dfrac{9}{ x \ - \ y} + \dfrac{5}{ x \ + \ y} = 2$      ----(ii)

By solving the equation (i) and (ii), we get

x - y = 6 km/h

x + y = 10 km/h

x = 8 km/h

∴ The speed of the boat in the still water is 8 km/h

Concept used:

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

Calculation:

$\left[ \dfrac{35+(5\times9)\div8+4}{\left(-2\dfrac{2}{3}+3\dfrac{1}{4}\right)\div2}\right]\div6$

⇒ $\left[ \dfrac{35+45\div8+4}{\left(-\dfrac{8}{3}+\dfrac{13}{4}\right)\div2}\right]\div6$

⇒ $\left[ \dfrac{35+\frac{45}{8}+4}{\left(-\dfrac{32 + 39}{12}\right)\div2}\right]\div6$

⇒ $\left[ \dfrac{39+\frac{45}{8}}{\left(\dfrac{7}{12}\right)\div2}\right]\div6$

⇒ $\left[ \dfrac{\frac{312 \ +\ 45}{8}}{\left(\dfrac{7}{24}\right)}\right]\div6$

⇒ $[{\dfrac{357 \ \times 24}{7 \ \times \ 8}}] \div 6$

⇒ ${\dfrac{357 \ \times 3}{7 \ \times \ 6}}$ = $\dfrac{51}{2}$

Given:

A sum of money becomes 120% of itself in 3 years

Calculation:

According to the question

There is 20% interest in 3 years

20% = 3 years

So, 50% interest will be in

⇒ 50% = 3 × (50/20)

⇒ 50% = 15/2 years

∴ It will take 15/2 years to become 150% of itself.

Given:

Initial Expenditure = 75%

Initial Savings = 25%

Increase in income = 20%

Increase in expenditure = 20%

Concept:

To solve this type of question, consider the initial income to be 100. Then, calculate the rest of the data using simple % rules.

% increase/Decrease = [(Final value - Initial value) / initial value] × 100

Solution:

Let the income be 100.

Expenditure = 75% of 100 = 75

Savings = 25% of 100 = 25

% increase income = 20%

New income = 120

% increase in expenditure = 20% of 75 = 15

New expenditure = 75 + 15 = 90

New savings = New income - new expenditure = 120 - 90 = 30

% increase in savings = [(30 - 25)/25] × 100

= 20%

∴Increase in savings is 20%

Given:

The ratio of the number 3 : 5 : 9

LCM of the number = 810

Calculation:

Let the number be 3x, 5x and 9x

LCM of 3x, 5x and 9x is 45x

45x = 810

⇒ x = 810/45

⇒ x = 18

HCF of 3x, 5x and 9x is x

So HCF of the numbers is 18

∴ The HCF of the numbers is 18.

Given:

The height and radius of the base of a cylinder are both increased by 10%

Formula used:

Volume of a cylinder = πr²h

Calculation:

Let the height and radius of the cylinder be h and r

Volume of the cylinder = πr²h

Increased height = 1.1h

Increased radius = 1.1r

New volume = π × (1.1r)² × 1.1h

⇒ 1.331πr²h

Increase in volume = 0.331πr²h

Percentage increase = (0.331πr²h/πr²h) × 100 = 33.1%

∴ There will be 33.1% increase in the volume

Given:

The efficiency of A, B and C = 2 : 3 : 4

They together can complete = 6 days

Formula used:

Work done = Time × Efficiency

Calculation:

Total work is

6 × (2 + 3 + 4) = 54

A can complete the work in

54/2 = 27 days

∴ A can complete the work in  27 days.

Given:

The length of a rectangle is decreased by 10%

The area of the rectangle is increased by 10%.

Formula used:

Area of rectangle = Length × Breadth

Calculation:

Suppose the length and breadth of the rectangle are ‘l’ and ‘b’ respectively.

So, area of rectangle = lb

Now,

Decrement length = 0.9l

Increased area = 1.1lb

new breadth = 1.1lb/0.9l

⇒ 1.1b/0.9

Change in breadth = b - (1.1b/0.9)

⇒ 0.2b/0.9

Increased% = $\dfrac{\frac{0.2b}{0.9}}{b} × 100$

⇒ $\dfrac{200}{9}\%$

∴ Percentage increment in breadth = $\dfrac{200}{9}\%$

Alternate Method

Let the length be 100 and breadth b

Length = 100

Initial area = 100b

New length = 90

New area = 110b

New breadth = 110b/90

Change in breadth = 2b/9

Increased% = $\dfrac{\frac{2b}{9}}{b} × 100$

⇒ $\dfrac{200}{9}\%$

∴ Percentage increment in breadth = $\dfrac{200}{9}\%$

Given:

$\dfrac{(1.5)^3-(4.7)^3+(3.2)^3+4.5\times4.7\times3.2}{(15)^2+(47)^2+(32)^2+1.5\times4.7\times32-3.2\times1.5}$

Formula used:

a³ - b³ + c³ - 3abc = (a - b + c)(a² + b² + c² + ab + bc - ca )

Calculation:

$\dfrac{(1.5)^3-(4.7)^3+(3.2)^3+4.5\times4.7\times3.2}{(15)^2+(47)^2+(32)^2+1.5\times4.7\times32-3.2\times1.5}$

⇒ $\dfrac{(1.5 - 4.7 + 3.2)[(1.5)^2+(4.7)^2+(3.2)^2 +1.5 \times 4.7 + 4.7 \times 3.2 - 3.2 \times 1.5]}{(15)^2+(47)^2+(32)^2+1.5\times4.7\times32-3.2\times1.5}$

⇒ $\dfrac{(0)[(1.5)^2+(4.7)^2+(3.2)^2 +1.5 \times 4.7 + 4.7 \times 3.2 - 3.2 \times 1.5]}{(15)^2+(47)^2+(32)^2+1.5\times4.7\times32-3.2\times1.5}$

⇒ 0

∴ The correct answer will be 0.

Given:

Length of two train = 275 m and 175 m

Faster train overtake slower train in 54 sec

Speed of the slower train = 40 km/h

Formula used:

Speed = Distance/Time

When two objects moves in same direction

Relative speed = a - b

Where a and b are speed of the objects, a > b

To convert m/s into km/h multiply by 18/5

Calculation:

Total length = 275 + 175 = 450

Let the speed of the faster train be x km/h

Relative speed = x - 40

⇒$\dfrac{450}{54}$ = x - 40

⇒ $\dfrac{450}{54} \times \dfrac{18}{5}$ = x - 40

⇒ 30 = x - 40

⇒ x = 70 km/h

∴ The speed of the faster train is 70 km/h

Given:

(x + y) ∶ (x - y) = 4 ∶ 1

Calculation:

$\dfrac{x \ + \ y}{x \ - \ y} = \dfrac{4}{1}$

⇒ 4x - 4y = x + y

⇒ 3x = 5y

⇒ $\dfrac{x}{y} = \dfrac{5}{3}$

Now

(x³ + y³) ∶ (x³ - y³)

⇒ (5³ + 3³) ∶ (5³ - 3³)

⇒ (125 + 27) ∶ (125 - 27)

⇒ 152 : 98 = 76 : 49

∴ The value of (x³ + y³) ∶ (x³ - y³) is 76 : 49

Formula used:

Percentage = (Part value/Whole value) × 100

Calculation:

Total number of girls

300 + 750 + 1300 + 1400 + 850 + 500 = 5100

Total number of students

5100 + 800 + 1300 + 800 + 900 + 700 + 400 = 10000

Percentage of girls studying in the college

(5100/10000) × 100 = 51%

∴ The percentage of girls studying in the college is 51%

Formula used:

Percentage = (Part value/Whole value) × 100

Calculation:

ME stream total = 800 + 300 = 1100

Percentage = (300/1100) × 100 = 27.27%

Civil stream total = 1300 + 750 = 2050

Percentage = (750/2050) × 100 = 36.58%

CS stream total = 800 + 1300 = 2100

Percentage = (1300/2100) × 100 = 61.9%

EC stream total = 900 + 1400 = 2300

Percentage = (1400/2300) × 100 = 60.8%

IT stream total = 700 + 850 = 1550

Percentage = (850/1550) × 100 = 54.8%

Electrical stream total = 400 + 500 = 900

Percentage = (500/900) × 100 = 55.55%

∴ The highest percentage is 61.9%

Formula used:

Percentage = (Part value/Whole value) × 100

Calculation:

Total number students

300 + 750 + 1300 + 1400 + 850 + 500 + 800 + 1300 + 800 + 900 + 700 + 400 = 10000

Total number of student in CS

800 + 1300 = 2100

Percentage = (2100/10000) × 100 = 21%

∴ The percentage of CS is 21%.

The correct answer is 'asked whether who had taken his book.'

Key Points

• The given sentence is an example of an interrogative sentence.
• Following steps are required to convert direct speech of interrogative sentence into indirect speech
• Convert the interrogative sentence into an assertive sentence.
• Convert 'said' into 'asked'.
• The punctuation i.e. commas need to be replaced with 'if' or 'whether'.
• The tense of the direct speech will be changed in indirect speech.
• The given direct speech is in the present perfect tense and it will be converted into past perfect tense.
• Structure of present perfect tense:
• Subject+ has/have+ the third form of the verb
• Example:
• He has completed his work.
• Structure of past perfect tense:
• Subject+ had+ the third form of the verb
• Example:
• He had completed his work.
• Thus, the correct answer is option 3.

The correct sentence is: Krish asked whether who had taken his book.

Additional Information

• Interrogative sentence: Interrogative sentence is a sentence that asks a question rather than making a statement. 
• ​Example:** Has anyone seen my torch?
• Assertive sentence: A sentence that describes a fact or statement is called an Assertive Sentence.
• Example:  I’m going to buy some groceries.

The correct sentence is 'Despite the rush, Ali decided to go to the mall and purchase clothes.'

Key Points

• In statement 1, the usage of the conjunction 'but' is incorrect as it is used to introduce two contrasting sentences.
• In statement 3, the usage of the conjunction 'or' is incorrect as it is used to link alternatives.
• In statement 4, the usage of the conjunction 'though' is incorrect as it is also used to introduce two contradictory sentences.
• Statement 2 is correct as the conjunction 'and' is used to connect grammatically coordinate words, phrases, or clauses.
• Therefore, the correct answer is option 2.

Additional Information

• 'Despite' in a sentence is used to show contrast.
• Structure: Despite+ noun
• Example: We had a great time despite the rain.

The correct answer is 'Cheerful'.

Key Points

• Let's explore the meaning of the given word and the marked word.
• Gloomy:  having or showing a lack of hope.
• Example: During the funeral, the widow had a gloomy expression on her face.
• Cheerful: noticeably happy and optimistic.
• Example: Cheerful company shortens the miles.
• Thus, from the above-given explanation, we can say that both 'Gloomy' and 'Cheerful' are antonyms to each other.
• Therefore, the correct answer is option 3.

Additional Information

• Let's explore the meaning of other options:

The correct answer is 'The artist painted a masterpiece'.

Key Points

• A complete sentence has the following characteristics:
• It must have a subject and a verb.
• It must convey a complete thought.
• Now let's look at the options:
• 'Now and then' is an idiomatic phrase which means Occasionally or sometimes. They are used in a sentence to help us describe an exact situation in a different, more creative way. They make a context with a sentence and individually they are incomplete.
• Example: Josh does stop by the store every now and then, but I haven't seen him lately.
• 'The car in the park' has a subject and a verb but it isn't satisfying the second condition i.e. it isn't conveying the complete thought, therefore, it isn't a complete sentence.
• 'Once in blue moon' is an idiomatic phrase which means very rarely. The idiomatic phrase is used in a sentence to help us describe an exact situation in a different, more creative way. They make a context with a sentence and individually they are incomplete.
• 'The artist painted a masterpiece' is a complete sentence as it has a subject, i.e. 'the painter' and a verb, i.e. 'painted' and object i.e. 'a masterpiece'. Together they are conveying a complete thought, therefore, option 2 is the correct answer.

The correct answer is 'Uninhabited'.

Key Points

• Let's explore the meaning of the given word and the marked word.
• Deserted: (of a place) empty of people.
• Example: It was a strong clue that the restaurant either had poor service or terrible food since it looked deserted.
• Uninhabited: not occupied or lived in by people.
• Example: The wild, uninhabited land is reserved and houses cannot be built there.
• Thus, from the above-given explanation, it is clear that 'deserted' and 'Uninhabited' are synonyms to each other.
• Therefore, the correct answer is option 2.

Additional Information

• Let's explore the meaning of the other options:

The correct answer is 'the team couldn't perform well'.

Key Points

• Let's take a look at the adverb 'however' in the sentence.
• 'However' as an adverb is used to introduce a statement that contrasts with or seems to contradict something that has been said previously.
• Example: People tend to put on weight in middle age. However, gaining weight is not inevitable.
• Thus, from the above-given explanation, it is clear that we need a statement that is in contrast with the previous one.
• Therefore, 'the team couldn't perform well' will be used in the blank.

The correct sentence is: The coach did his best, however, the team couldn't perform well.

Additional Information

• Adverb: A word or phrase that modifies or qualifies an adjective, verb, or other adverb or a word group, expressing a relation of place, time, circumstance, manner, cause, degree, etc.

The correct answer is 'Comic'.

Key Points 

• Let's explore the meaning of the given word and the marked word.
• Tragic: causing or characterized by extreme distress or sorrow.
• Example:  It was just a tragic accident.
• Comic: causing or meant to cause laughter.
• Example: She can always be relied on to provide comic relief at a boring party.
• Thus, from the above-given explanation, we can say that both 'Tragic' and 'Comic' are antonyms to each other.
• Therefore, the correct answer is option 1.

Additional Information

• Let's explore the meaning of the other options

The correct answer is 'besides'.

Key Points

• A preposition in a sentence is used before a noun or pronoun to mark its relation to the rest of the sentence.
• 'Besides' in a sentence can be used as an adverb or as a preposition.
• As an adverb it means in addition to, as well; moreover, furthermore.
• Example: I’m perfectly willing to take on more work and, besides, I want to.
• As a preposition, it means in addition to or apart from.
• Example: No one besides the store manager can make that call.
• In the given sentence, a preposition is needed in the sentence to fill the blank.
• Therefore, 'besides' will be used in the blank.

The correct answer is: 'The boy did not have any friends besides Aakash.'

Additional Information

• Let's explore the meaning of other prepositions:
• Beside: at the side of; next to.
• From: indicating the point in time at which a particular process, event, or activity starts.
• Along: moving in a constant direction on (a road, path, or any more or less horizontal surface).

Confusion Points

• Let's understand the difference between 'beside' and 'besides'.
• 'Beside' is used exclusively for the meaning 'at the side of' whereas 'besides' as a preposition, is used exclusively for the meanings in addition to and except for.
• In the context of the sentence, the usage of 'beside' will be incorrect as it is pointing out that apart from Aakash, the boy did not have any other friend.

The correct answer is 'Devoted'.

Key Points

• Let's explore the meaning of the given word and the marked word:
• Ardent: passionate, eager, or having intense feelings about something.
• Example: Paul feels out of place among his friends because of his ardent love of classical music.
• Devoted: Feeling or displaying strong affection or attachment; ardent
• Example: Lucy is absolutely devoted to her cats.
• Thus, from the above-given example, we can say that both 'Ardent' and 'Devoted' are synonyms to each other.
• Therefore, the correct answer is option 2.

Additional Information

• Let's explore the other options:

The correct answer is 'across'.

Key Points

• A preposition in a sentence is used before a noun or pronoun to mark its relation to the rest of the sentence.
• 'Across' as a preposition means from one side to the other of (a place, area, etc.).
• Example: I ran across the street.
• Now let's take a look at the keyword 'rushed'.
• Rushed: move with urgent haste.
• Thus, the preposition 'across' will be used in the blank as the context of the sentence is explaining the movement of the cat from one place to other.

Therefore, the correct sentence is: My cat rushed across the road.

Additional Information

• Let's explore the meaning of the other prepositions in the options:
• Of: As a preposition 'of' expresses the relationship between a part and a whole.
• Example: The sleeve of his coat is tattered.
• Besides: As a preposition 'besides' means in addition to or apart from or except.
• Example: Nothing besides a miracle could help them.
• Into: As a preposition, 'Into' is used as a function word to indicate entry, introduction, insertion, superposition, or inclusion.
• Example: He entered into an alliance.

The correct answer is 'Companions'.

Key Points

• Let's explore the meaning of the given word and the marked word.
• Colleagues: a person with whom one works in a profession or business.
• Example: Frank and his colleague are going to work on the project all weekend.
• Companion: one who serves as a friend or partner in something
• Example: Sometimes, the best companion for an elderly man is an obedient and calm dog.
• Thus, from the above-given explanation, we can say that both 'Colleagues' and 'Companions' are synonyms to each other.
• Therefore, the correct answer is option 4.

Additional Information

• Let's explore other options:

The correct answer is 'meeting'.

Key Points

• When the verb 'like' is succeeded by a gerund it is used to express a liking towards something or someone.
• Example: I like getting up early in the morning.
• When the same verb i.e. 'like' is succeeded by a to-infinitive, they express a habitual preference, something that we do not necessarily like or enjoy but consider as useful, right,or wise:
• Example: I like to be punctual.
• Thus, in the above context of the sentence, the speaker is expressing a liking towards meeting his teachers, so 'meeting' will be used in the blank.
• Therefore, the correct answer is option 2.

The correct sentence is: He likes meeting his school teachers once in a while.

Additional Information

• Gerund: When the -ing form of verb functions as a noun it is called gerund and generally gerunds are singular.
• Example: Swimming is good for health.
• To-infinitive: An infinitive is a verbal consisting of to + a verb, and it acts like a subject, direct object, subject complement, adjective, or adverb in a sentence.
• Example: He likes to watch T.V.

The correct answer is 'Because'.

Key Points

• Conjunction: A conjunction is a part of speech that is used to connect clauses or sentences or to coordinate words in the same clause.
• Types of conjunction:
• Coordinating conjunction: A coordinating conjunction is a conjunction that links two words, phrases, clauses, or sentences that are grammatically equal.
• Example: We have a porcupine and a kangaroo.[And links two listed elements that are grammatically equal i.e. both are nouns]
• Subordinating conjunction: A subordinating conjunction is a conjunction that links a dependent clause (also known as a subordinate clause) to an independent clause
• Example: The city recommends everyone stay inside because the winds could be dangerous.
• Correlative conjunctions: Correlative conjunctions worked in pairs to link structurally identical parts of a sentence. These are 'Either..or', 'Neither...nor', 'Not only....but also'.
• Example: You’re either going to love his work or hate it.
• In the given sentence, the second part i.e. 'He is accountable for their performance' is an independent clause whereas 'he heads the team' is a dependent clause, therefore, to link both subordinate conjunction is needed in the sentence.
• 'Because' is a subordinating conjunction and as a conjunction, it means for the reason that.
• As the context of the sentence is explaining the reason, therefore, 'Because' will be used in the blank.

The correct sentence is: Because he leads the team, he is accountable for their performance.

The correct answer is 'doesn't she?'.

Key Points

• The given sentence is an example of a question tag.
• Question tags: Question tags are short questions at the end of statements and they are mainly used in speech when we want to- confirm that something is true or not, or to encourage a reply from the person we are speaking to.
• A positive statement is followed by a negative question tag.
• Example: Jack is from Spain, isn't he?
• A negative statement is followed by a positive question tag.
• Example: They aren't funny, are they?
• When the verb in the main sentence is in the present simple we form the question tag with do/does.
• Example: Alison likes tennis, doesn't she?
• As the verb in the given sentence is in the present simple, therefore 'doesn't she?' will be used in the blank.

Therefore, the correct answer is: She works at the CCI Club doesn't she?

Additional Information

• Present simple tense: It is used when an action is happening right now, or when it happens regularly​
• Structure
• Subject + the first form of verb(s/es)
• Example: He plays cricket.