MP Police Constable : (2 Dec 2025 Shift 2) Memory-Based Paper (Previous Year Paper)

The correct answer is Meta.

Key Points

• Meta is the new name adopted by Facebook in October 2021
• Reflects company's focus on building the metaverse
• Parent company now oversees Facebook, Instagram, WhatsApp etc.
• Name change followed major rebranding initiative
• Represents shift from social media to virtual reality technology

 Additional Information

• Zip:
• Name of various tech products but unrelated to Facebook
• Compression software format used for files
• Also name of payment services in some countries
• No connection to social media or virtual reality
• Never considered for Facebook's rebranding
• Hyperlapse:
• Instagram's time-lapse video feature launched in 2014
• Allows stabilized fast-motion videos
• Standalone app discontinued in 2018
• Remains as feature within Instagram app
• Too product-specific for corporate rebranding
• Boomerang:
• Instagram's looping video feature
• Creates back-and-forth mini-videos
• Launched in 2016 as standalone app
• Later integrated into Instagram Stories
• Never proposed as company name

The Correct Answer is Option 1 i.e Weight.

• An object is stationary then the force is still acting on it is Weight.
• Weight is just another word for the force of gravity Fg.
• Weight is a force that acts at all times on all objects near Earth.
• Momentum: It is defined as the quantity of motion of the body.
• Acceleration is the rate of change of velocity.

The pattern followed here is,

(1) 18 - 88 → 88 is not divisible by 18.

(2)19 - 95 → 95 is divisible by 19. (3) 23 - 92 → 92 is divisible by 23. (4) 24 - 96 → 96 is divisible by 24.

Hence, "18 - 88" is odd from the given alternatives.

Given:

The original weight = 80 g

The weight for selling = 100 g

Concept:

P = SP - CP      Where, P = Profit, SP = Selling price, and CP = Cost price

Calculation:

Let the profit % be X

The cost price for the weight = 80 g

The selling price for the weight = 100 g

According to the questions

⇒ X = \({100\ -\ 80\over 80}\ \times 100\ =\ {20\over 80}\ \times 100\ =\ 25\%\ \)

∴ The required result will be 25%

The correct answer is 1994.

Key Points

• The Panna National Park got the status of Tiger Reserve in 1994,
• Panna Biosphere Reserve:
• It was established in 1981.
• It is situated in the Vindhya mountain range.
• It is located in the Panna and Chhatarpur districts of Madhya Pradesh.
• It was notified as a Biosphere Reserve by the Union Ministry of Environment, Forest and Climate Change (MoEFCC) in 2011.
• Ken river flows through it.

Additional Information

• Madhya Pradesh has the highest number of tigers in the country followed by Karnataka and Uttarakhand.
• Ministry of Environment, Forest and Climate Change.
• Union Minister- Prakash Javadekar.
• Minister of State- Babul Supriyo.
• Secretary- Mr. Rameshwar Prasad Gupta.

Important Points

The correct answer is Hydrometer.

Key Points

• The hydrometer basically consists of a weighted, sealed, long-necked glass bulb immersed in the measured liquid, the flotation depth shows the liquid density, and the neck can be calibrated to read the actual gravity value.
• A hydrometer used for determining the density of liquids is based on Archimedes' principle.

Important Points

• Archimedes principle:
• It states that a body when wholly or partially immersed in liquid experiences an upward thrust which is equal to the volume of the liquid.
• Archimedes' Principle is also known as the physical law of buoyancy.
• When a solid is fully immersed in a liquid, it loses weight, which is equal to the weight of the liquid it displaces.
• Apparent weight= actual weight−buoyant force= mg−ρgV
• Where m = mass of the object and ρ = density of the fluid

Preparing the family tree using the following the symbols:

Drawing the family tree as per the given information:

 

From the family tree,

Ragini is Brother's wife of Shilpa.

Hence, the correct answer is "Brother's wife".

Given:

A saves Rs. 4000

B saves Rs. 3500

Calculation:

Let income of A and B be 7x and 5x

Let expense of A be 2y

Expenditure of B = y

According to the question

7x – 2y = 4000  ---- (1)

5x – y = 3500  ---- (2)

Multiply by 2 in equation (2)

10x – 2y = 7000  ---- (3)

Subtract equation (1) from (3)

⇒ x = 1000

Total income of A and B = 7x + 5x = 12x = 12 × 1000 = 12000

∴ Total income of A and B is Rs. 12000

The correct answer is Parliament.

Key Points

• According to Article 169 of the Constitution of India, the Parliament of India can create or abolish the State Legislative Council of a state by a simple majority if that state's legislature passes a resolution for that with a special majority.
• The State Legislative Council can neither form nor dissolve a state government.
• The State Legislative Council also have no role in the passing of money bills.

Important Points

• Legislative Council (Vidhan Parishad):
• Legislative Council is the upper house of the state.
• A member of a legislative council is referred to as an MLC.
• The Constitution of India does not mandate states to form a Legislative Council.
• What is the difference between the Legislative Assembly and the Legislative Council?
• The term of the Legislative Assembly is five years unless it is dissolved earlier at the request of the chief minister. The tenure of the members of the council is six years and a third of the members of the House retire after every two years.
• The Legislative Assembly is the lower house, much like the Lok Sabha of the Parliament. Legislative Council is the upper house in the state and like the Rajya Sabha, it is a permanent House.
• How is the Legislative Council created?
• The members of the Council are either nominated by the Governor of the state or are indirectly elected.
• One-third of the members of this House are elected by the Legislative Assembly.
• One-third are elected by the local bodies like a municipality or other local authorities.
• One-twelfth of the members are elected by graduates.
• One-twelfth of the members are elected by teachers.
• One-sixth of the members are nominated by the Governor.
• The legislative Council elects its Chairman, who plays the role of presiding officer and Deputy Chairman from amongst its members.
• Eligibility criteria:
• An Indian citizen who is at least 30 years of age (a person cannot simultaneously be a Member of Parliament and State legislature).

Additional Information

• How many legislative councils are there in India?
• As of January 2020, six out of 28 states have a legislative council. The states with bicameral legislature include Andhra Pradesh, Bihar, Karnataka, Maharashtra, Telangana and Uttar Pradesh. These states have both the Legislative Council and Legislative Assembly.

The correct answer is Methane with air.

Important Points

• Methane explosions occur when methane gas from mining is built up and cannot escape because of high pressure.
• For example, a coal mine methane (CMM) is a mixture of methane and air present in the active mining sites.
• This mixture of gas is released during the process of coal mining causes the explosion in the mining area.

Additional Information

From the above explanation, we can see that most of the explosions in mines occur due to a mixture of air and methane.

Here, we use the table given below:

Given:

25 + 5 × 35 ÷ 7 - 26

After interchanging the sign '× and ÷' →

⇒ 25 + 5 ÷ 35 × 7 - 26

Apply BODMAS rule:

⇒ 25 + 0.1428 × 7 - 26

⇒ 25 + 1 - 26

⇒ 26 - 26 = 0

Hence, the correct answer is "0".

Given:

Average age of 3 children = 12 years

Ratio of ages = 3 : 4 : 5

Formula used:

Average = Sum of all terms/Total number of terms

Calculation:

According to question,

⇒ (3x + 4x + 5x)/3 = 12

⇒ 12x = 36

⇒ x = 3

Average age of youngest and eldest child = (3 × 3 + 5 × 3)/2

⇒ (9 + 15)/2

⇒ 24/2

⇒ 12

∴ The correct answer is 12.

The correct answer is Seven.

 Key Points

• The halogens are a group in the periodic table that consists of five or six chemically related elements: fluorine, chlorine, bromine, iodine (I), and astatine.
• Halogens have 7 electrons in their outermost shell.
• The boiling points of halogens tend to move down the group due to the increasing strength of van der Waals forces as the size and relative atomic mass of the atoms increase.
• Halogens are the only periodic table group containing elements in all three familiar states of matter (solid, liquid, and gas) at standard temperature and pressure.
• Halogens are highly reactive, and they can be harmful or even fatal to biological organisms in sufficient quantities.
• This reactivity is due to the high electronegativity and high effective nuclear charge.
• Halogens can react with atoms of other elements to gain an electron.

Additional Information

• The elements of Group 2 include beryllium, magnesium, calcium, strontium, barium, and radium.
• These elements with the exception of beryllium are commonly known as alkaline earth metals.
• These elements are called Alkaline Earth metals because of two reasons:
• Their oxides exist in the earth’s crust and are very stable to heat.
• Their oxides and hydroxides show basic (alkaline) natures.
• Beryllium fulfills the first criterion but not the second one since its oxides and hydroxides show amphoteric behavior, rather than alkaline.

The correct answer is all of the above.

Important Points

• Boiling:
• It is the rapid vaporization of a liquid.
• When raw vegetables are immersed in boiling water, vegetables start to get cooked.
• The boiling point is the temperature at which the vapor pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere.
• Stewing: It is a cooking method. It uses small, uniform pieces of raw food immersed in a liquid and slowly simmered. It involves a very slow boiling of water.
• Simmering: It is a cooking method in which foods are cooked in hot liquids kept just below the boiling point of water.

Thus, we can say that Water is used as a medium of cooking in boiling, stewing, and simmering.

Given equation: 30 + 28 - 34 ÷ 2 × 4 = 2

1. 28 and 34

30 + 34 - 28 ÷ 2 × 4 = 2

⇒ 30 + 34 - 14 × 4 = 2

⇒ 30 + 34 - 56 = 2

⇒ 64 - 56 = 2

⇒ 8 ≠ 2 

2. 34 and 4

30 + 28 - 4 ÷ 2 × 34 = 2

⇒ 30 + 28 - 4 ÷ 2 × 34 = 2

⇒ 30 + 28 - 2 × 34 = 2

⇒ 30 + 28 - 68 = 2

⇒ 58 - 68 = 2

⇒ -10 ≠ 2

3. 30 and 34

34 + 28 - 30 ÷ 2 × 4 = 2

⇒ 34 + 28 - 15 × 4 = 2

⇒ 34 + 28 - 60 = 2

⇒ 62 - 60 = 2

⇒ 2 = 2

4. 4 and 2

30 + 28 - 34 ÷ 4 × 2 = 2

⇒ 30 + 28 - 8.5 × 2 = 2

⇒ 30 + 28 - 17 = 2

⇒ 58 - 17 = 2

⇒ 41 ≠ 2

Hence, '30 and 34' is the correct answer.

Calculation:

A, B, and C together can complete a piece of work in 20 days

One day work of A, B & C = 1/20

A + B + C =1/20                     -----(1)

An alone can complete the work in 24 days

One day work of A = 1/24

A = 1/24                              -----(2)

Doing (1) - (2)

(A + B + C) - (A ) = 1/20 - 1/24

LCM of 20 & 24 is 120

(B + C) = (6 - 5)/120

B + C = 1/120

∴ B & C together can complete the work in 120 days.

The correct answer is Thimphu Tshechu Festival.

Key Points

• The Thimphu Tshechu is one of the greatest celebrations in Bhutan.
• Starting on the tenth day of the eighth lunar month, this event is conducted in the capital city for three days.
• Tenzing Rabgye, the fourth Temporal Ruler (1638–1696), founded the Thimphu Tsechu in 1670 during the eighth month of the Bhutanese calendar.
• It was started as a way to remember Guru Rinpoche's birth.
• It takes place in the Tashichhodzong's courtyard.
• In western Bhutan, it is regarded as one of the most stunning Tshechus.

Additional Information

• Gai Jatra Festival:
• Gai Jatra is a Nepalese festival that is mostly observed by the Newar community in the Kathmandu valley.
• Dongzhi Festival:
• One of the most significant Chinese festivals is the Dongzhi Festival.
• Thingyan Festival:
• The Burmese New Year Festival, or Thingyan, usually takes place around the middle of April.

and 

Similarly,

Hence, POLARY will be coded as ORSBUD.

Given:

Sum of three numbers = 98.

Ratio of First number to Second number is 2 : 3.

Ratio of Second number to Third number is 5 : 8.

Calculation:

Let the three numbers be A, B and C.

Then,

A : B = 2 : 3      ----(i)

B : C = 5 : 8      ----(ii)

Multiplying eq (i) by 5 and eq (ii) by 3 we get

A : B : C = 10 : 15 : 24

Now C = 98 × 24/49

⇒ C = 48 

∴ The third number is 48.

The correct answer is ​Trachoma

In News

• The World Health Organization (WHO) has officially recognized India for eliminating trachoma as a public health problem, highlighting a major achievement in public health.

Key Points

• Trachoma, caused by the bacterium Chlamydia trachomatis, is a leading cause of global blindness, and India's elimination effort places it alongside Nepal, Myanmar, and 19 other countries that have achieved this milestone.
• WHO Director-General Dr. Tedros Adhanom Ghebreyesus commended India's commitment to fighting this disease, which has plagued populations for decades.
• India's battle against trachoma began in 1963 with the launch of the National Trachoma Control Program by the Ministry of Health and Family Welfare, supported by WHO and UNICEF.
• The program utilized a multifaceted approach, including surgical treatments, antibiotic distribution, and Water, Sanitation, and Hygiene (WASH) initiatives.
• These initiatives were later integrated into the National Program for Control of Blindness and Visual Impairment (NPCBVI), enhancing their reach and effectiveness across the country.
• Recent comprehensive surveys in 2024 confirmed that elimination targets had been met in all previously endemic areas, with the prevalence of trachoma cases drastically reduced from 4% in 2005 to just 0.008% by 2018.
• The WHO validated these findings and recognized the successful implementation of the SAFE strategy: Surgery, Antibiotics, Facial cleanliness, and Environmental improvement, which played a crucial role in India's achievement in trachoma elimination.

The correct answer is Seismograph.

• Seismograph records the waves reaching the surface during an earthquake.

Key Points

• Earthquakes:
• The sudden tremors or shaking of the earth's crust is called an earthquake.
• The earth’s crust is made up of different parts of various sizes. They are called plates.
• Most of the earthquakes in the world are caused by the movements of the plates.
• ‘Seismology’ deals with the study of the earthquake.
• ‘Richter scale’ and ‘Mercalli scale’ are the instruments to measure and record the magnitude and the intensity of an earthquake respectively.
• The place where the seismic waves originate beneath the earth’s surface is called the focus of the earthquake.
• The epicenter is that point on the ground surface that is closest to the focus.

Additional Information

• National Earthquake Science Data Centre is located in New Delhi.
• A chronometer is a portable timekeeping device of great accuracy.
• A barograph is a recording aneroid barometer where the changes in atmospheric pressure are recorded.
• A Manometer is a device to measure pressures.

The logic is:

(5, 8, 338) → 338 ÷ (5 + 8) = 338 ÷ 13 = 26 and (5 + 8) × 2 = 13 × 2 = 26

Similarly,

(11, 8, 722) → 722 ÷ (11 + 8) = 722 ÷ 19 = 38 and (11 + 8) × 2 = 19 × 2 = 38

Hence, ‘(11, 8, 722)’ is the correct answer.

Alternate MethodLOGIC: (First  Number+ Second Number )² = Third Number ÷ 2

In (5, 8, 338) →

(5 + 8)² = 338 ÷ 2

13² = 169

169 = 169

Similarly;

In (11, 8, 722) →

(11 + 8)2 = 722 ÷ 2

19² = 361

361 = 361

Hence**, "(11, 8, 722)"** is the correct answer.

Given:

Reeta can do the work in 14 days,

Geeta can do the work in 21 days

Concept:

If two people are working together, then 1/(Total work) = 1/(Reeta's work) + 1/(Geeta's work)

Calculation:

⇒ 1/(Total work) = 1/14 + 1/21 = 5/42

⇒ Total work = 42/5 = 8.4 days

Therefore, Reeta and Geeta together can complete the work in 8.4 days.

The Correct Answer is Sikkim.

In News

• Sikkim becomes 1^st state to launch Sabbatical Leave scheme for govt staff.

Key Points

• Sikkim became the first state in India to introduce a formal Sabbatical Leave scheme (launched in August 2023).
• The scheme allows regular government employees with at least 5 years of continuous service to take 365 to 1,080 days of leave, receiving 50% of basic pay during the leave period.
• Seniority is preserved, and employees may be recalled with one month’s notice.
• The scheme was later extended to temporary employees with 6 months of service, under the same benefits.
• In April 2025, approval powers were delegated:
• Group C & D staff (including temporary): Leave can be granted by Heads of Departments.
• Group A & B staff: Must seek approval from the Secretary of the Personnel Department.
• Many youths used the leave to pursue personal goals and launch startups.

Concept:

• Oxides are compounds formed by the reaction of metals, non-metals with oxygen. The types of oxides are:
• Basic oxide: It is a complex chemical substance oxide, which forms a salt with a chemical reaction with acids or acidic oxides and does not react with bases or basic oxides.
• E.g. Copper oxide (Cu2O), Magnesium oxide (MgO)
• Acidic oxide: It is a complex chemical substance oxide, which forms a salt with the chemical reactions with bases or basic oxides and does not react with acidic oxides.
• E.g. Carbon dioxide (CO2), Silicon dioxide (SiO2)
• Amphoteric oxide: It is a complex chemical substance, also oxides, which form a salt with the chemical reactions with acids (or acid oxides) and with bases (or basic oxides).
• E.g. Copper, Zinc, Tin, Lead, Aluminum, and Beryllium.​

Explanation:

• Na is an alkali metal and belongs to group 1 of the periodic table.
• Metals forms basic oxides, hence Na2O is a basic oxide.
• Na2O hydrolyses to give a basic solution.
• Al is amphoteric in nature. Hence, the oxide of Aluminium Al₂O₃ will also be amphoteric in nature.
• Sulphur is non-metal and non-metals forms acidic oxides.
• Hence, SO2 is an acidic oxide.
• It hydrolysis to give an acidic solution of sulphurous acid H₂SO₃.

​Hence, the oxide that** _is acidic _is SO₂.**

Given

Statements:

All birds are crows.

Some crows are parrots.

No crow is a pigeon.

The least possible Venn diagram for the given statement is:

Conclusions:

I. No parrot is a pigeon - False (Because, No definite relation given between parrot and pigeon, so it can be possibly only).

II. Some birds are parrots - False (Because, No definite relation given between birds and parrots, so it can be possibly only).

So, Neither conclusion I nor II follows.

Hence, the correct answer is "Option 3".

Given:-  

The average height of P, Q, and R is 160 cm 

The average height of P and Q is 140 cm 

The average height of R and Q is 129 cm

Formula used:-   

Average = Sum of Values/Number of Values

Calculation:-  

⇒ (P + Q + R)/3 = 160 

⇒ (P + Q + R) = 480 

Similarly, 

⇒ (P + Q)/2 = 140 

⇒ (P + Q) = 280

⇒ R = (P + Q + R) - (P + Q)  

⇒ R =  480 - 280 = 200  

Similarly, 

⇒ (Q + R)/2 = 129 

⇒ Q + R = 258  

⇒ Q = 258 - 200 = 58 cm 

∴ The required answer is 58 cm.

The Correct Answer is Prioritise Breastfeeding: Create Sustainable Support Systems.

In News

• World Breastfeeding Week: August 1–7.

Key Points

• World Breastfeeding Week is observed annually from August 1 to 7.
• It promotes awareness about breastfeeding’s health benefits and the need to support mothers.
• The 2025 theme is:

“Prioritise Breastfeeding: Create Sustainable Support Systems”.

• The campaign began in 1992, launched by the World Alliance for Breastfeeding Action (WABA).
• Organised in collaboration with WHO and UNICEF.
• The week commemorates the 1990 Innocenti Declaration, which was a global pledge to protect and promote breastfeeding.

Logic : 

• First and Third letter → (1) is added to the position value according to English alphabetic series.
• Second letter → (2) is added to the position value according to English alphabetic series.

​​So,

​

Hence, "JDD" is the correct answer.

Shortcut Trick

Total Surface Area (TSA) = (Sum of three sides)² − (Sum of squares of three sides)

Sum of sides = 20 cm

Sum of squares = 150 cm²

TSA = 20² − 150 = 400 − 150 = 250 cm²

∴ The correct option is D.

Alternate Method

Given: Sum of sides (l + b + h) = 20 cm

Sum of squares (l² + b² + h²) = 150 cm²

Formula Used: (l + b + h)² = l² + b² + h² + 2(lb + bh + hl)

Total Surface Area (TSA) = 2(lb + bh + hl)

Length (l)
Breadth (b)
Height (h)
TSA = 2(lb + bh + hl)

⇒ (l + b + h)² = (l² + b² + h²) + TSA
⇒ (20)² = 150 + TSA
⇒ 400 = 150 + TSA
⇒ TSA = 400 − 150
⇒ TSA = 250 cm²

∴ The correct option is D.

Additional Information

Volume of a Cuboid

The total space occupied by the cuboid is given by the product of its three dimensions: Volume = l × b × h.

Diagonal of a Cuboid

The length of the longest rod that can be placed inside a cuboid is its diagonal: Diagonal = √(l² + b² + h²).

Lateral Surface Area (LSA)

The surface area of the four vertical faces (excluding top and bottom) is: LSA = 2 × h × (l + b).

Relation between TSA and Diagonal

Total Surface Area = (Sum of Dimensions)² − (Diagonal)².

The correct answer is Roe River.

Key Points

• Roe River is called the shortest river in the world.
• The Roe River runs from Giant Springs to the Missouri River near Great Falls, Montana, United States.
• The Roe River is only 201 feet (61 m) long.

Additional Information

• Amazon is the largest river in the world.
• Its average discharge of 7,381,000 cu-ft/s exceeds the average discharge of the next seven rivers put together.
• The Nile is a major north-flowing river in northeastern Africa.
• It flows into the Mediterranean Sea.
• The Arvari River, considered the smallest river in India, is located in Rajasthan.

From the information above, we cannot conclude who is ill in Suman’s family.

Therefore, conclusion I does not follow.

Similarly, the information above is not sufficient for us to conclude Suman’s mode of transport.

Therefore, conclusion II does not follow.

Hence, Neither I or II follows.

Given :

Radius of cone(r) = 11 cm

The slant height of cone (l) = 24 cm

Formula used :

Total surface area of the cone = πr(r + l) 

Calculation:

Total surface area of the cone = πr(r + l) 

⇒  \(\dfrac{22}{7}× 11× (11+24) \) 

⇒ \({\dfrac{22}{7}}× 11× 35\)

⇒ 22 × 11 × 5 = 1210 cm²

∴ The answer is 1210 cm² .

Shortcut TrickTotal surface area of the cone is the multiple of π. Which is the multiple of 11 and only one option is the multiple of 11 that is 1210.

The correct answer is Venus.

Key Points

• Jupiter:
• Jupiter is the planet, orange in colour with white bands on it.
• Jupiter is the largest planet in the Solar System.
• It is also known as the winter planet as its average temperature is very low.
• Jupiter's atmosphere is mostly made up of hydrogen (H₂) and helium (He).
• Mars:
• Mars is reddish in colour.
• Mars is also known as the Red Planet
• It is red in colour due to the presence of Iron Oxides.
• Mars has two moons named Phobos and Deimos.
• Venus: 
• Venus is Earth's twin in size.
• Venus is the hottest planet in our solar system.
• It is the brightest planet in the Solar System.
• It is also sometimes referred to as the sister planet to Earth, due to its near similarity of size and mass.
• Venus is referred to as the “morning star” and “evening star”.
• It is the second planet from the Sun.
• It also rotates clockwise like Uranus.
• Mercury:
• It is the closest planet to the sun.
• It is an extremely hot planet.
• The planet has no water on it.
• Mercury planet has no protective blanket like Ozone around it to prevent us from harmful radiations.
• It does not have any moons or rings.
• It is the smallest planet in the solar system.
• It has the shortest period of revolution of approximately 88 Earth days.

The correct answer is Carbon dioxide.

Key Points

• Soda water or carbonated water is water that has been infused with carbon dioxide gas under pressure.
• This is the main ingredient in sweetened soft drinks (over 90%).
• This produces a bubbly drink that's also known as sparkling water, club soda, soda water, seltzer water, and fizzy water.
• Carbonated beverage consumption has been linked with diabetes, hypertension, and kidney stones, all risk factors for chronic kidney disease.

Additional Information

• Carbon monoxide - Carbon monoxide consists of one carbon atom and one oxygen atom. It is formed when fuels are burned in an insufficient supply of oxygen.
• Chlorine - Chlorine is a chemical element with the symbol Cl and atomic number 17. It is a member of the halogen group and is toxic and corrosive in nature.
• Hydrogen - Hydrogen is the chemical element with the symbol H and atomic number 1. Hydrogen is the lightest element.

• The correct answer is Option 4: ask to pay your half rent and you will manage the rest by giving tuition and asked them to allow you to go for exam preparation.

 

• Qualities Projected in this situation:  (Determination, Effective Intelligence, Group Influencing abilities, and a Sense of Responsibility, and Good listener).

Key Points

• Checklist for attempting SRT 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. As time is an important factor, hence your thinking ability should be swift.
5. React quickly and be logical.

Additional Information

Officer qualities:

Given:

The average weight of 30 girls in a group is 35 kg. 

When a new girl is included, the average weight increases by 2 kg. 

Concept used:

Total = Average × Number of entities

Calculation:

Total weight of 30 girls = 35 × 30 = 1050 kg

New average weight = 35 + 2 = 37 kg

Total number of girls now = 30 + 1 = 31

New total weight of 31 girls = 37 × 31 = 1147 kg

Now, the weight of the new girl = 1147 - 1050 = 97 kg

∴ The weight of the new girl is 97 kg.

The correct answer is Venus.

Key Points

• Venus is known as the hottest planet in the solar system due to its thick atmosphere, primarily composed of carbon dioxide, with clouds of sulphuric acid.
• The atmosphere of Venus is 96.5% carbon dioxide and contains clouds made of droplets of concentrated sulphuric acid, making it highly reflective.
• The sulphuric acid clouds create a runaway greenhouse effect, trapping heat and raising surface temperatures to an average of 475°C (887°F).
• Venus's yellowish-white appearance in the sky is due to sunlight reflecting off its sulphuric acid clouds.
• The atmospheric pressure on Venus's surface is about 92 times that of Earth, equivalent to the pressure found 900 meters underwater on Earth.

Additional Information

• Sulphuric Acid Clouds
• The clouds on Venus are composed of concentrated sulphuric acid droplets, formed from volcanic activity releasing sulphur dioxide into the atmosphere.
• These clouds are highly reflective, contributing to Venus's high albedo (reflectivity).
• Greenhouse Effect on Venus
• Venus experiences a runaway greenhouse effect due to the thick carbon dioxide atmosphere trapping heat.
• This effect makes Venus hotter than Mercury, even though Mercury is closer to the Sun.
• Atmospheric Composition
• Venus's atmosphere is composed of carbon dioxide (96.5%) and nitrogen (3.5%), with traces of water vapor, sulphur dioxide, and other gases.
• The high concentration of carbon dioxide is responsible for the extreme greenhouse effect observed.
• Exploration of Venus
• Spacecraft such as NASA's Magellan and ESA's Venus Express have studied Venus's atmosphere and surface.
• Future missions like NASA’s VERITAS and ESA’s EnVision aim to explore Venus in greater detail.

The logic followed here is :-

Canberra is the capital of Australia.

Similarly,

'Paris' is the capital of France.

Hence, the correct answer is "Paris".

Important Points

Given:

Speed of going = 40 km/h,

Speed of returning = 60 km/h

Concept:

Average speed = Total distance / Total time.

The total distance for the round trip is twice the one-way distance.

Solution:

One-way distance = d

⇒ Total time = d/40 + d/60 = (3d + 2d)/120 = d/24

⇒ Average speed = 2d/(d/24) = 48 km/h

Hence, her average speed is 48 km/h.

The correct answer is Granite.

• Granite is is a coarse-grained igneous rock that contains quartz and feldspar.

Key Points

• Granite is a coarse-grained, light-colored, intrusive igneous rock that contains mainly quartz, feldspar, and mica minerals.
• Granite is a light-colored igneous rock with grains large enough to be visible with the unaided eye.
• It forms from the slow crystallization of magma below Earth's surface.
• Granite is composed mainly of quartz and feldspar with minor amounts of mica, amphiboles, and other minerals.
• ​Major production of granite in raw as well as processed form is generally from Andhra Pradesh, Rajasthan, Karnataka, Tamil Nadu, and Gujarat.

Additional Information

The correct answer is Option 1: Question them, fight with them and save the girl.

 

• Qualities Projected in this situation:  (Courage, stamina, sense of responsibility, speed of decision, and determination).

Key Points

• Checklist for attempting SRT 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. As time is an important factor, hence your thinking ability should be swift.
5. React quickly and be logical.

Additional Information

Officer qualities:

Given:

25 - [24 - {6 ÷ 3 - (6 - 9 ÷ 3) ÷ 3}]

Concept used:

Follow the BODMAS rule according to the table given below:

Calculation:

⇒ 25 - [24 - {6 ÷ 3 - (6 - 9 ÷ 3) ÷ 3}]

⇒ 25 - [24 - {6 ÷ 3 - (6 - 3) ÷ 3}]

⇒ 25 - [24 - {6 ÷ 3 - 3 ÷ 3}]

⇒ 25 - [24 - {2 - 1}]

⇒ 25 - [24 - 1]

⇒ 25 - 23

⇒ 2

∴ The correct answer is 2.

The correct answer is Om Birla.

Key Points

• The current Speaker of the Lok Sabha is Om Birla.
• He is a member of the Bharatiya Janata Party (BJP) and has been in office since June 19, 2019.
• He is the 17^th Speaker of the Lok Sabha.
• Om Birla was born on 23 NOVEMBER 1962 in Kota, Rajasthan.
• He graduated from Rajasthan University with a degree in law.
• He started his political career as a member of the Rajasthan Legislative Assembly in 1985.
• He served as the Speaker of the Rajasthan Legislative Assembly from 2003 to 2008.
• Om Birla was elected to the 16^th Lok Sabha in 2014.
• He was re-elected to the 17^th Lok Sabha in 2019.
• He was unanimously elected as the Speaker of the 17^th Lok Sabha on June 19, 2019.

Additional Information

• The Speaker is the chairman or the presiding officer of Lok Sabha.
• He is selected amongst the members of Lok sabha by election.
• The date of the election is decided upon by the President of India.
• If he is absent Deputy speaker presides over the Lok Sabha.
• Speaker is responsible for the decorum of the Lok Sabha.

Given:

Statement: 

All plants are trees.

All trees are animals.

Some animals are human.

The least possible Venn diagram is:

Conclusions:

I. Some plants are human →  False  (There is not any definite relation is given between plants and human. So it can be possible only.)

II. Some trees are human → False (There is not any definite relation is given between trees and human. So it can be possible only.)

III. All plants are animals → True (It is given that all plants are trees and all trees are animals, it follows that all plants are animals)

Hence, only conclusion III follows.

Given:

Train Length = 950 m

Speed = 234 kmph

Time = 67 Sec.

Formula Used:

Distance = Speed × Time

km/hr = \(\frac{5}{18}\) m/s

Calculation:

Let the tunnel length be x m

⇒ Distance = Speed × Time

⇒ 950 + x = (234 × \(\frac{5}{18}\)) × 67

⇒ 950 + x = 65 × 67

⇒ x = 4355 - 950

⇒ x = 3405 meters.

∴ The length of the tunnel is 3405 meters.

The correct answer is 78%.

Key Points

• Composition of the atmosphere:
• The air we take in while breathing is actually a mixture of many gases.
• Nitrogen and oxygen are two gases that make up the bulk of the atmosphere.
• Carbon dioxide, helium, ozone, argon and hydrogen are found in lesser quantities.
• Apart from these gases, tiny dust particles are also present in the air.
• These dust particles present in the air are commonly referred to as aerosols.

Important Points

The atmospheric composition of gases by volume is as follows:

The logic followed here is:

Hence, 'RJTG' is the correct answer.

Shortcut Trick

For a cuboid, Height (h) can be directly calculated using the rearranged Total Surface Area (TSA) formula:

h = (TSA ÷ 2 − l × b) ÷ (l + b)

h = (678 ÷ 2 − 12 × 9) ÷ (12 + 9)

h = (339 − 108) ÷ 21 = 231 ÷ 21 = 11 cm

∴ The correct answer is 11 cm.

Alternate Method

Given:

Length (l) = 12 cm

Breadth (b) = 9 cm

Total Surface Area (TSA) = 678 cm²

Formula Used:

Total Surface Area of a cuboid = 2(lb + bh + hl)

Calculation:

Let the height of the cuboid be h cm.

⇒ 678 = 2 × (12 × 9 + 9 × h + h × 12)

⇒ 678 ÷ 2 = 108 + 9h + 12h

⇒ 339 = 108 + 21h

⇒ 21h = 339 − 108

⇒ 21h = 231

⇒ h = 231 ÷ 21

⇒ h = 11 cm

∴ The correct answer is 11 cm.

Additional Information

Volume of a Cuboid

The total space enclosed within a cuboid is defined as its volume: Volume = l × b × h

Lateral Surface Area (LSA)

The total area of the four vertical walls (excluding the base and the top) is: LSA = 2h(l + b)

Length of Diagonal

The longest rod that can be accommodated inside a cuboid is given by its body diagonal: d = √(l² + b² + h²)

The correct answer is Compressed Natural Gas.

Key Points

• Compressed Natural Gas (CNG) is a fuel that can be used in place of gasoline, diesel fuel, and liquefied petroleum gas (LPG).
• CNG is made by compressing natural gas (which is mainly composed of methane, CH₄), to less than 1% of the volume it occupies at standard atmospheric pressure.
• It is stored and distributed in hard containers at a pressure of 20–25 MPa (2,900–3,600 psi), usually in cylindrical or spherical shapes.
• CNG is considered an environmentally friendly alternative because it produces fewer undesirable gases compared to conventional fuels.
• The use of CNG can lead to significant reductions in vehicle emissions such as CO₂, NOx, and particulate matter.

Additional Information

• Natural Gas Composition
• Natural gas is primarily composed of methane (CH₄), but it also contains smaller amounts of other hydrocarbons such as ethane, propane, and butane.
• It may also include impurities like water vapor, carbon dioxide (CO₂), nitrogen, and hydrogen sulfide (H₂S).
• Environmental Benefits
• CNG vehicles produce less CO₂ compared to gasoline and diesel vehicles.
• They also emit significantly lower levels of NOx and particulate matter, which are major pollutants contributing to urban smog and health issues.
• Applications of CNG
• CNG is used in light-duty passenger vehicles, buses, trucks, and even some locomotives and ships.
• It is also used in stationary engines for electricity generation and industrial applications.
• Safety Considerations
• CNG is lighter than air, so it disperses quickly when released, reducing the risk of fire and explosion compared to liquid fuels.
• However, CNG storage tanks are built to withstand high pressures and undergo rigorous testing to ensure safety.

Given: 26 September 2005 was Monday.

Now,

2005 to 2017 = 12 Years (9 Ordinary Years and 3 Leap Years).

And, In 12 Years = 3 Leap years and 9 Ordinary Years.

So, 3 Leap Years have 6 odd days,

And, 9 Ordinary Years have 9 odd days.

Total odd days = 6 + 9 = 15.

15 odd days → 15/7 = 2 weeks and 1 odd day.

then, 26 September 2017 will be Monday + 1 = Tuesday.

Hence, the correct answer is "Option 3".

Given:-

Copper : Zinc = 5 : 4

Quantity (Q) of zinc Q_z = 20 kg

Concept used:-

Unitary Method-

Copper : Zinc = Q_C : Q_Z

Calculation:-

According to question-

⇒ 5 : 4 = Q_C : 20

⇒ 4Q_C = 20 × 5

⇒ Q_C = 100/4

⇒ Q_C= 25 kg

∴ Quantity of copper is 25Kg.

The correct answer is On 3^rd March 1952.

• The first elected democratic government of Rajasthan was formed On 3^rd March 1952.
• From 03.03.1952 to 31.10.1952 - Shri Tika Ram Paliwal was the Chief Minister.

Key Points

• The process of the creation of a Legislative Council had started during the final phase of the formation of Rajasthan.
• This process continued until early 1952. Meanwhile, Shri Hira Lal Shastri submitted his resignation from the post of Chief Minister and an interim government was formed on 26 April 1951.
• Though the Rajasthan Legislative Assembly came into existence in March 1952, the people of Rajasthan had experienced some kind of parliamentary democracy even under the rule of the princely state.

Additional Information

• The development of the House of Representatives in Rajasthan has an important place in the constitutional history of India as it was the result of the merger of the 22 princely states of the erstwhile Rajputana with the Union of India.
• According to the provisions of Article 168 of the newly created Constitution of India, each state was to establish a legislature consisting of one or two houses. Rajasthan chose a unicameral character and its legislature is known as the Rajasthan Legislative Assembly.

The statement highlights the problem of wide-ranged cheating in colleges and its effect.

• The statement suggests that copying in colleges has resulted in poor quality of students at the higher education level. This implies that such malpractices have an effect on the quality of students opting for higher education. Thus, conclusion I follows.
• The statement implies the effect of copying on the quality of higher education. Therefore, it also means that there is a necessity to take some measures to tackle the situation. Thus, Conclusion II also follows.

Hence the correct answer is option 3.

Given:

Y can complete a work in 20 days.

Z can complete the same work in 10 days.

The amount of work done together in 3 days is needed.

Concept used:

Work done is inversely proportional to the time taken. When two people work together, their combined rate of work is the sum of their individual rates.

Calculation:

Work done by Y in a day = 1/20

Work done by Z in a day = 1/10

Combined work done in a day = (1/20) + (1/10) = 0.15 

Work done in 3 days = 0.15 × 3 = 0.45

Convert this to percentage = 0.45 × 100% = 45%

∴ Y and Z together will complete 45% of the work in 3 days.

The correct answer is Metrology.

Explanation:

• Metrology
• The science of weights and measures is called Metrology.
• Each modern industrialized country, including India, has a National Metrology Institute NMI which maintains standards of measurements.

Additional Information

• Meteorology 
• Meteorology is a branch of atmospheric sciences that includes atmospheric chemistry and atmospheric physics and focuses on weather forecasting.
• In meteorology, a common unit is a bar and millibar.
• Mineralogy
• The study of the physics and chemistry of natural, solid, crystalline materials is known as mineralogy.
• Mineralogy studies the processes of mineral origin and formation, classification of minerals, the geographical distribution of minerals, and utilisation of minerals.
• Morphology 
• Morphology is the study of the size, shape, and structure of animals, plants, and microorganisms, as well as the relationships between their constituent parts, in biology.
• The term refers to the general aspects of the biological form and arrangement of plant or animal parts.

The logic is;

84 – 48 → (8² – 4²) = 64 – 16 = 48

73 – 40 → (7² – 3²) = 49 – 9 = 40

97 – 42 → (9² – 7²) = 81 – 49 = 32 ≠ 42

65 – 11 → (6² – 5²) = 36 – 25 = 11

Hence, ‘97 – 42’ is the odd one.

Given:

Ratio of equal side to unequal side = 5 : 7

Perimeter of the triangle = 34 cm

Formula:

Perimeter of a triangle (P) = Sum of all sides

Solution:

Let the length of each equal side be 5x, and the length of the unequal side be 7x.

Perimeter = 5x + 5x + 7x = 17x

Now, we have the equation:

17x = 34 cm

Solve for x:

x = 34 cm/17 = 2 cm

Length of equal side = 5x = 5 × 2 cm = 10 cm

So, the length of the equal side is 10 cm.

The correct answer is  option 2

Key Points

• The Vedas contain numerous hymns (suktas) that are central to their structure, composed to invoke deities and express cosmological ideas. Hence, statement 1 is incorrect.
• The Vedas were composed much earlier than the Puranas, marking the earliest phase of ancient Indian literature. Hence, statement 2 is correct.

The year 2004 is a Leap year.

Therefore, 29 days in February.

if 1^st February is a Wednesday.

Then 8^th, 15^th, 22^nd, and 29^th February are Wednesday.

So, 1^st March is Thursday.

Therefore, 3^rd March is Saturday.

Hence, the correct answer is "Saturday".

Given:

Virat completes a job in 45/2 days.

Concept Used:

Work done per day = 1 / Total days to complete the job

Formula Used:

Work done in given days = (Work done per day) × (Number of given days)

Calculation:

Work done per day = 1 / (45/2)

⇒ Work done per day = 2/45

Work done in 3 days = (2/45) × 3

⇒ Work done in 3 days = 6/45

⇒ Work done in 3 days = 2/15

∴ The part of the job Virat will do in 3 days is 2/15.

The correct answer is Shisham - Tropical Deciduous.

Key Points

• Shisham (Dalbergia sissoo) is a prominent tree in the Tropical Deciduous forests of India.
• These forests are characterized by trees that shed their leaves annually to conserve water during dry seasons.
• Shisham is primarily found in regions with a distinct dry season, such as parts of India, Nepal, and Pakistan.
• These trees are significant for their durable wood, often used in furniture, construction, and agricultural tools.

Additional Information

• Tropical Deciduous Forests
• These forests are also known as Monsoon forests.
• They are found in regions with a moderate climate, where there is seasonal rainfall followed by a dry season.
• Common species include Teak, Sal, Sandalwood, and Shisham.
• These forests are crucial for biodiversity and provide habitat for various animal species.
• Ebony - Littoral Forests
• Littoral forests are coastal forests often found near seashores and are characterized by salt-tolerant species.
• Ebony trees are more commonly associated with dense tropical evergreen forests rather than littoral forests.
• Birch - Tropical Evergreen
• Tropical evergreen forests are dense, multi-layered forests with high biodiversity.
• Birch trees are not typically found in tropical regions; they are more common in temperate and boreal forests.

Letters are a part of word.

Similarly, class is a part of school.

Hence, school : class is the correct answer.

Given:

2x + 7y : 4x - 3y :: 8 : 3

Concept used:

If A : B :: C : D then (B × C) = (A × D)

Calculation:

According to the concept,

(2x + 7y) × 3 = (4x - 3y) × 8

⇒ 6x + 21y = 32x - 24y

⇒ 26x = 45y

⇒ x/y = 45/26

⇒ x : y = 45 : 26

∴ x : y is 45 : 26.

The correct matching of the Gupta administrative officers with their responsibilities is: (A) - iv, (B) - ii, (C) - iii, (D) - i

Key Points

• ​Monarchy was the dominant form of government during the Gupta period.
• The Gupta dynasty's rulers had their own councils.
• Mantri Parishad was the name given to the ministerial council.
• It was made up of high-ranking officials such as the kumaramatya and the sandhivigrahika.
• The Gupta empire had a top-to-bottom administrative hierarchy.
• Some of the important officials at the central level are:
• Dandpashiki: A Vaishali seal mentions the dandapashika's adhikarana (office), which could have been a district-level police station.
• Mahapratihara: The mahapratiara was the chief of the palace guards or was in charge of royal palace security.
• Mahakshapatlik: He was the land revenue officer.
• Mahabaladhikrit: Military designations like baladhikrita and mahabaladhikrita as chief of infantry and cavalry are mentioned on seals and inscriptions.

Hence, we can conclude that the correct matching of the Gupta administrative officers with their responsibilities is: 

The statement mentions the statement made by the Prime Minister during an election campaign.

While it is true that he says that his Government has made India the best tourist destination in the whole world, it need not mean that Earlier, India was not the best tourist destination in the world. This is because it is merely the statement made by an individual (here, the PM) and need not be the fact.

Hence, the conclusion I does not follow.

Obviously, the Prime Minister would highlight the major achievements of his government for the upcoming elections. Hence, conclusion II follows.

So, only Conclusion II follows.

Given:

Santosh got 24000 more votes than Mantosh

Mantosh and Santosh got 30% and 40% of the total votes respectively

Shortcut Trick

10% = 24000

1% = 2400

100% = 240000

Therefore, total number of votes are 240000.

Alternate Method Concept:

Calculation of total votes based on percentage shares of candidates.

Solution:

Let the total number of votes be X

As per the question,

Santosh's votes (40% of X) = Mantosh's votes (30% of X) + 24000

⇒ 40/100 × X = 30/100 × X + 24000

⇒ 10/100 × X = 24000

⇒ X = 240000

Therefore, total number of votes are 240000.

The correct answer is Parliamentary and Federal.

Key Points

• India is a Sovereign Socialist Secular Democratic Republic with a parliamentary system of government.
• The systems of Government adopted by India are Parliamentary and Federal forms.
• Parliamentary system is a democratic form of government in which the party with the greatest representation in the parliament forms the government, its leader becoming Prime Minister.
• Federalism is the system of government in which the same territory is controlled by two levels of governments.
• A federal system of government divides the power of the government between the national and state and local levels.

 Thus, we can say that the Parliamentary and the Federal systems of government was adopted by India.

Given: Six friends Uday, Vikrant, William, Xena, Yasir and Ziya.

Given that no two friends have the same height

1. Vikrant is taller than only three other friends.

__ > __ > Vikrant > __ > __ > __

2. Ziya is only taller than Xena and William is only shorter than Uday.

Uday >  William > Vikrant > __ > Ziya > Xena

So, Yasir will sit on the remaining place bacause, no two friends have the same height.

Uday >  William > Vikrant > Yasir > Ziya > Xena

Here, 'Yasir' is the third shortest among all the friends.

Hence, the correct answer is "Yasir".

Given:

The smallest 4-digit number which if divided by 8, 10, 12, 15, 20 leaves the remainder as 7

Concept used:

The four-digit smallest number is 1000.

First to determine the LCM, then divide the LCM with the n-digit smallest number and subtract the remainder with the n-digit smallest number and add the corresponding LCM with it, and, then add the remainder which comes in every case.

To determine the LCM of the given numbers, find out the factors of corresponding numbers and then calculate the product of all the factors with the highest powers.

Calculations:

L.C.M of 8, 10, 12, 15, 20

Factors of 8 = 2 × 2 × 2

Factors of 10 = 2 × 5

Factors of 12 = 2 × 2 × 3

Factors of 15 = 3 × 5

Factors of 20 = 2 × 2 × 5

Required LCM = 2 × 2 × 2 × 3 × 5 = 120

Now, when we divide 1000 by 120 we get 40 as the remainder

The smallest four-digit number which is divisible by 8, 10, 12, 15, 20 = 1000 - 40 + 120 = 1080

The smallest four-digit number which when divided by 8, 10, 12, 15, 20 leaves the remainder 7 in each case = 1080 + 7 = 1087

∴ The answer is 1087

The correct answer is CH₄ + 2O₂ → CO₂ + 2H₂O.

Key Points

• The combustion of methane is a chemical reaction where methane (CH4) reacts with oxygen (O2) to produce carbon dioxide (CO2) and water (H2O).
• The balanced chemical equation for the complete combustion of methane is CH4 + 2O2 → CO2 + 2H2O.
• This reaction is exothermic, meaning it releases heat energy.
• Combustion reactions are crucial in energy production, especially in the use of natural gas as a fuel.
• In the context of environmental science, the products of methane combustion, particularly CO2, are significant contributors to greenhouse gas emissions.

Additional Information

• Combustion Reaction
• A combustion reaction is a high-temperature exothermic redox chemical reaction between a fuel and an oxidant, producing oxidized products and releasing heat.
• Complete combustion occurs when there is a sufficient supply of oxygen, resulting in the formation of carbon dioxide and water.
• Incomplete combustion, due to a lack of oxygen, can produce carbon monoxide and soot (carbon).
• Methane (CH4)
• Methane is a colorless, odorless, and highly flammable gas that is the simplest alkane and the main component of natural gas.
• It is a potent greenhouse gas with a global warming potential much higher than that of carbon dioxide over a short period.
• Greenhouse Gases
• Greenhouse gases (GHGs) are gases in the Earth's atmosphere that trap heat. They include water vapor, carbon dioxide, methane, nitrous oxide, and ozone.
• Methane is considered a significant greenhouse gas, contributing to global warming and climate change.
• Natural Gas
• Natural gas is a fossil fuel used as a source of energy for heating, cooking, and electricity generation. It is mainly composed of methane.
• It is considered a cleaner alternative to other fossil fuels like coal and oil, as it produces less carbon dioxide per unit of energy released.

The pattern followed here is.

Given: R + T × S - P ÷ Q + N

1. Q is the mother of T → Not Correct, As Q is a niece of T.

2. P is the mother of Q  → Correct 

3. T is  the brother of S → Correct 

4. R is the wife of T → Correct 

Hence the correct answer is "Option 1".

We know that (a + b + c)² = a² + b² + c² + 2 (ab + bc + ca)

⇒ 6² = 14 + 2 (ab + bc + ca)

⇒ (36 - 14)/2 = (ab + bc + ca)

⇒ ab + bc + ca = 11