Free MCQs with Answers | Military Brat Defence Academy

Q: Pointing to a woman, Arun said, 'She is the daughter of the only son of my grandfather.' How is the woman related to Arun?

Correct Answer: B. Sister. The only son of Arun's grandfather is Arun's father; his daughter is Arun's sister.

Q: Choose the odd one out.

Correct Answer: D. C-17 Globemaster III. The first three are fighter aircraft; C-17 is a strategic transport aircraft.

Q: If AIR is coded as BJS, how is FLY coded using the same rule?

Correct Answer: A. GMZ. Each letter is shifted one place forward: F→G, L→M, Y→Z.

Q: Find the next number: 3, 8, 18, 38, 78, ?

Correct Answer: D. 158. Each term is previous term ×2 +2; next = 78×2+2 = 158.

Q: Radar is to Detection as Compass is to:

Correct Answer: B. Direction. A radar is used for detection; a compass is used for direction.

Q: A squadron recorded sorties of 18, 24, 21, 27 and 30 over five days. What was the average number per day?

Correct Answer: C. 24. Total = 120; average = 120/5 = 24.

Q: The angles of a triangle are in the ratio 2:3:4. The largest angle is:

Correct Answer: C. 80°. Nine parts equal 180°, so one part is 20° and the largest is 80°.

Q: A fair die is thrown once. What is the probability of obtaining a prime number?

Correct Answer: B. 1/2. Prime outcomes are 2, 3 and 5: 3 out of 6, so probability = 1/2.

Q: A 180 m train crosses a pole in 12 seconds. Its speed is:

Correct Answer: B. 54 km/h. Speed = 180/12 = 15 m/s = 54 km/h.

Q: The compound interest on ₹10,000 at 10% per annum for 2 years is:

Correct Answer: C. ₹2,100. Amount = 10,000×1.1² = 12,100; CI = ₹2,100.

QID #13508 UPSC AFCAT 02/2026 Mock Test Series - Attempt Online Tests AFCAT 2026 Full-Length Mock Test 3 Medium

Pointing to a woman, Arun said, 'She is the daughter of the only son of my grandfather.' How is the woman related to Arun?

Correct Answer: B. Sister
The only son of Arun's grandfather is Arun's father; his daughter is Arun's sister.

Question: Pointing to a woman, Arun said, 'She is the daughter of the only son of my grandfather.' How is the woman related to Arun?

A. Mother

B. Sister

C. Aunt

D. Cousin

Correct Answer: B. SisterExplanation: The only son of Arun's grandfather is Arun's father; his daughter is Arun's sister.

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QID #13507 UPSC AFCAT 02/2026 Mock Test Series - Attempt Online Tests AFCAT 2026 Full-Length Mock Test 3 Easy

Choose the odd one out.

Correct Answer: D. C-17 Globemaster III
The first three are fighter aircraft; C-17 is a strategic transport aircraft.

Question: Choose the odd one out.

A. MiG-29

B. Rafale

C. Sukhoi Su-30MKI

D. C-17 Globemaster III

Correct Answer: D. C-17 Globemaster IIIExplanation: The first three are fighter aircraft; C-17 is a strategic transport aircraft.

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QID #13506 UPSC AFCAT 02/2026 Mock Test Series - Attempt Online Tests AFCAT 2026 Full-Length Mock Test 3 Easy

If AIR is coded as BJS, how is FLY coded using the same rule?

Correct Answer: A. GMZ
Each letter is shifted one place forward: F→G, L→M, Y→Z.

Question: If AIR is coded as BJS, how is FLY coded using the same rule?

A. GMZ

B. GLZ

C. GNZ

D. FMZ

Correct Answer: A. GMZExplanation: Each letter is shifted one place forward: F→G, L→M, Y→Z.

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QID #13505 UPSC AFCAT 02/2026 Mock Test Series - Attempt Online Tests AFCAT 2026 Full-Length Mock Test 3 Medium

Find the next number: 3, 8, 18, 38, 78, ?

Correct Answer: D. 158
Each term is previous term ×2 +2; next = 78×2+2 = 158.

Question: Find the next number: 3, 8, 18, 38, 78, ?

A. 118

B. 138

C. 148

D. 158

Correct Answer: D. 158Explanation: Each term is previous term ×2 +2; next = 78×2+2 = 158.

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QID #13504 UPSC AFCAT 02/2026 Mock Test Series - Attempt Online Tests AFCAT 2026 Full-Length Mock Test 3 Easy

Radar is to Detection as Compass is to:

Correct Answer: B. Direction
A radar is used for detection; a compass is used for direction.

Question: Radar is to Detection as Compass is to:

A. Altitude

B. Direction

C. Distance

D. Temperature

Correct Answer: B. DirectionExplanation: A radar is used for detection; a compass is used for direction.

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QID #13503 UPSC AFCAT 02/2026 Mock Test Series - Attempt Online Tests AFCAT 2026 Full-Length Mock Test 3 Easy

A squadron recorded sorties of 18, 24, 21, 27 and 30 over five days. What was the average number per day?

Correct Answer: C. 24
Total = 120; average = 120/5 = 24.

Question: A squadron recorded sorties of 18, 24, 21, 27 and 30 over five days. What was the average number per day?

A. 22

B. 23

C. 24

D. 25

Correct Answer: C. 24Explanation: Total = 120; average = 120/5 = 24.

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QID #13502 UPSC AFCAT 02/2026 Mock Test Series - Attempt Online Tests AFCAT 2026 Full-Length Mock Test 3 Medium

The angles of a triangle are in the ratio 2:3:4. The largest angle is:

Correct Answer: C. 80°
Nine parts equal 180°, so one part is 20° and the largest is 80°.

Question: The angles of a triangle are in the ratio 2:3:4. The largest angle is:

A. 60°

B. 70°

C. 80°

D. 90°

Correct Answer: C. 80°Explanation: Nine parts equal 180°, so one part is 20° and the largest is 80°.

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QID #13501 UPSC AFCAT 02/2026 Mock Test Series - Attempt Online Tests AFCAT 2026 Full-Length Mock Test 3 Easy

A fair die is thrown once. What is the probability of obtaining a prime number?

Correct Answer: B. 1/2
Prime outcomes are 2, 3 and 5: 3 out of 6, so probability = 1/2.

Question: A fair die is thrown once. What is the probability of obtaining a prime number?

A. 1/3

B. 1/2

C. 2/3

D. 5/6

Correct Answer: B. 1/2Explanation: Prime outcomes are 2, 3 and 5: 3 out of 6, so probability = 1/2.

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QID #13500 UPSC AFCAT 02/2026 Mock Test Series - Attempt Online Tests AFCAT 2026 Full-Length Mock Test 3 Easy

A 180 m train crosses a pole in 12 seconds. Its speed is:

Correct Answer: B. 54 km/h
Speed = 180/12 = 15 m/s = 54 km/h.

Question: A 180 m train crosses a pole in 12 seconds. Its speed is:

A. 45 km/h

B. 54 km/h

C. 60 km/h

D. 72 km/h

Correct Answer: B. 54 km/hExplanation: Speed = 180/12 = 15 m/s = 54 km/h.

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QID #13499 UPSC AFCAT 02/2026 Mock Test Series - Attempt Online Tests AFCAT 2026 Full-Length Mock Test 3 Easy

The compound interest on ₹10,000 at 10% per annum for 2 years is:

Correct Answer: C. ₹2,100
Amount = 10,000×1.1² = 12,100; CI = ₹2,100.

Question: The compound interest on ₹10,000 at 10% per annum for 2 years is:

A. ₹2,000

B. ₹2,050

C. ₹2,100

D. ₹2,200

Correct Answer: C. ₹2,100Explanation: Amount = 10,000×1.1² = 12,100; CI = ₹2,100.

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QID #13498 UPSC AFCAT 02/2026 Mock Test Series - Attempt Online Tests AFCAT 2026 Full-Length Mock Test 3 Easy

What is the remainder when 7^103 is divided by 6?

Correct Answer: B. 1
Since 7 ≡ 1 mod 6, every positive power leaves remainder 1.

Question: What is the remainder when 7^103 is divided by 6?

A. 0

B. 1

C. 5

D. 6

Correct Answer: B. 1Explanation: Since 7 ≡ 1 mod 6, every positive power leaves remainder 1.

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QID #13497 UPSC AFCAT 02/2026 Mock Test Series - Attempt Online Tests AFCAT 2026 Full-Length Mock Test 3 Medium

Pipe A fills a tank in 20 minutes and pipe B empties it in 30 minutes. If both are opened together, the tank will fill in:

Correct Answer: C. 60 minutes
Net rate = 1/20 − 1/30 = 1/60, so the tank fills in 60 minutes.

Question: Pipe A fills a tank in 20 minutes and pipe B empties it in 30 minutes. If both are opened together, the tank will fill in:

A. 40 minutes

B. 50 minutes

C. 60 minutes

D. 75 minutes

Correct Answer: C. 60 minutesExplanation: Net rate = 1/20 − 1/30 = 1/60, so the tank fills in 60 minutes.

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QID #13496 UPSC AFCAT 02/2026 Mock Test Series - Attempt Online Tests AFCAT 2026 Full-Length Mock Test 3 Hard

A vehicle increases its speed by 20%. By what percentage does the time taken for the same distance decrease?

Correct Answer: A. 16⅔%
New time = old time/1.2 = 5/6, a decrease of 1/6 = 16⅔%.

Question: A vehicle increases its speed by 20%. By what percentage does the time taken for the same distance decrease?

A. 16⅔%

B. 18%

C. 20%

D. 25%

Correct Answer: A. 16⅔%Explanation: New time = old time/1.2 = 5/6, a decrease of 1/6 = 16⅔%.

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QID #13495 UPSC AFCAT 02/2026 Mock Test Series - Attempt Online Tests AFCAT 2026 Full-Length Mock Test 3 Easy

If 3/5 of a number is 42, the number is:

Correct Answer: C. 70
Number = 42×5/3 = 70.

Question: If 3/5 of a number is 42, the number is:

A. 60

B. 65

C. 70

D. 75

Correct Answer: C. 70Explanation: Number = 42×5/3 = 70.

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QID #13494 UPSC AFCAT 02/2026 Mock Test Series - Attempt Online Tests AFCAT 2026 Full-Length Mock Test 3 Easy

The least number exactly divisible by 12, 15 and 18 is:

Correct Answer: C. 180
LCM of 12, 15 and 18 is 180.

Question: The least number exactly divisible by 12, 15 and 18 is:

A. 90

B. 120

C. 180

D. 360

Correct Answer: C. 180Explanation: LCM of 12, 15 and 18 is 180.

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QID #13493 UPSC AFCAT 02/2026 Mock Test Series - Attempt Online Tests AFCAT 2026 Full-Length Mock Test 3 Medium

How many litres of water must be added to 30 litres of a 40% salt solution to make it a 30% solution?

Correct Answer: B. 10 litres
Salt = 12 litres. Final volume for 30% = 40 litres, so add 10 litres.

Question: How many litres of water must be added to 30 litres of a 40% salt solution to make it a 30% solution?

A. 8 litres

B. 10 litres

C. 12 litres

D. 15 litres

Correct Answer: B. 10 litresExplanation: Salt = 12 litres. Final volume for 30% = 40 litres, so add 10 litres.

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QID #13492 UPSC AFCAT 02/2026 Mock Test Series - Attempt Online Tests AFCAT 2026 Full-Length Mock Test 3 Easy

The area of a circle is 154 cm². Using π = 22/7, its radius is:

Correct Answer: B. 7 cm
r² = 154×7/22 = 49, so r = 7 cm.

Question: The area of a circle is 154 cm². Using π = 22/7, its radius is:

A. 5 cm

B. 7 cm

C. 9 cm

D. 11 cm

Correct Answer: B. 7 cmExplanation: r² = 154×7/22 = 49, so r = 7 cm.

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QID #13491 UPSC AFCAT 02/2026 Mock Test Series - Attempt Online Tests AFCAT 2026 Full-Length Mock Test 3 Easy

If 3x − 7 = 2x + 9, then x equals:

Correct Answer: B. 16
3x−2x = 9+7, so x=16.

Question: If 3x − 7 = 2x + 9, then x equals:

A. 14

B. 16

C. 18

D. 20

Correct Answer: B. 16Explanation: 3x−2x = 9+7, so x=16.

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QID #13490 UPSC AFCAT 02/2026 Mock Test Series - Attempt Online Tests AFCAT 2026 Full-Length Mock Test 3 Medium

A device is marked 25% above cost price and sold at a discount of 10% on marked price. What is the profit percentage?

Correct Answer: B. 12.5%
Selling price = 1.25×0.90 = 1.125 of cost, giving 12.5% profit.

Question: A device is marked 25% above cost price and sold at a discount of 10% on marked price. What is the profit percentage?

A. 10%

B. 12.5%

C. 15%

D. 17.5%

Correct Answer: B. 12.5%Explanation: Selling price = 1.25×0.90 = 1.125 of cost, giving 12.5% profit.

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QID #13489 UPSC AFCAT 02/2026 Mock Test Series - Attempt Online Tests AFCAT 2026 Full-Length Mock Test 3 Hard

A sum amounts to ₹13,000 in 3 years at 10% simple interest per annum. What is the principal?

Correct Answer: B. ₹10,000
Amount = P(1 + 0.10 × 3) = 1.3P; therefore P = ₹13,000/1.3 = ₹10,000.

Question: A sum amounts to ₹13,000 in 3 years at 10% simple interest per annum. What is the principal?

A. ₹9,000

B. ₹10,000

C. ₹10,500

D. ₹11,000

Correct Answer: B. ₹10,000Explanation: Amount = P(1 + 0.10 × 3) = 1.3P; therefore P = ₹13,000/1.3 = ₹10,000.

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Free MCQs with Answers | Military Brat Defence Academy

Pointing to a woman, Arun said, 'She is the daughter of the only son of my grandfather.' How is the woman related to Arun?

Choose the odd one out.

If AIR is coded as BJS, how is FLY coded using the same rule?

Find the next number: 3, 8, 18, 38, 78, ?

Radar is to Detection as Compass is to:

A squadron recorded sorties of 18, 24, 21, 27 and 30 over five days. What was the average number per day?

The angles of a triangle are in the ratio 2:3:4. The largest angle is:

A fair die is thrown once. What is the probability of obtaining a prime number?

A 180 m train crosses a pole in 12 seconds. Its speed is:

The compound interest on ₹10,000 at 10% per annum for 2 years is:

What is the remainder when 7^103 is divided by 6?

Pipe A fills a tank in 20 minutes and pipe B empties it in 30 minutes. If both are opened together, the tank will fill in:

A vehicle increases its speed by 20%. By what percentage does the time taken for the same distance decrease?

If 3/5 of a number is 42, the number is:

The least number exactly divisible by 12, 15 and 18 is:

How many litres of water must be added to 30 litres of a 40% salt solution to make it a 30% solution?

The area of a circle is 154 cm². Using π = 22/7, its radius is:

If 3x − 7 = 2x + 9, then x equals:

A device is marked 25% above cost price and sold at a discount of 10% on marked price. What is the profit percentage?

A sum amounts to ₹13,000 in 3 years at 10% simple interest per annum. What is the principal?

Free MCQs with Answers and Explanations