Compound Interest on ₹8000 at 10% per annum for 2 years is?

The correct answer is B: ₹1680. Amount = P(1 + r/100)^t = 8000(1.1)^2 = 8000 × 1.21 = ₹9680. CI = 9680 - 8000 = ₹1680

Rs. 5000 invested at 12% p.a. compound interest. Amount after 2 years?

The correct answer is A: Rs. 6272. A = 5000(1.12)^2 = 5000 × 1.2544 = Rs. 6272.

How many even numbers are there from 1 to 100?

The correct answer is B: 50. Even numbers from 1 to 100: 2, 4, 6, ..., 100. This is an AP with first term 2, last term 100, common difference 2. Number of terms = (100-2)/2 + 1 = 50.

A trader sells two articles for ₹1,200 each. On one he gains 25% and on the other he loses 20%. What is his overall profit or loss percentage?

The correct answer is A: 2.3% loss. Step 1: For article 1 (25% gain): If SP = ₹1,200 and gain = 25%, then CP = 1200/1.25 = ₹960. Step 2: For article 2 (20% loss): If SP = ₹1,200 and loss = 20%, then CP = 1200/0.80 = ₹1,500. Step 3: Total CP = 960 + 1500 = ₹2,460. Step 4: Total SP = 1200 + 1200 = ₹2,400. Step 5: Loss = 2460 - 2400 = ₹6

A person buys 3 kg of sugar for ₹150 and sells 2 kg for ₹120. What is his profit/loss percentage?

The correct answer is A: 20% profit. CP per kg = 150/3 = ₹50. SP per kg = 120/2 = ₹60. Profit per kg = ₹10. Profit% = 10/50 × 100 = 20%.

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Quantitative aptitude questions for competitive exams

47 Q 7 Topics Take Mock Test

Difficulty: All Easy Medium Hard 11–20 of 47

Topics in Quantitative Aptitude

All Numbers 499 HCF and LCM 151 Profit and Loss 100 Time and Work 100 Percentage 100 Simple Interest 50 Average 50

Q.11 Easy Percentage

A product costs ₹1,200 to manufacture. The company wants a profit margin of 40%. What should be the selling price?

A ₹1,680

B ₹1,720

C ₹1,800

D ₹1,920

Correct Answer: A. ₹1,680

EXPLANATION

SP = CP + Profit = 1,200 + (40% of 1,200) = 1,200 + 480 = ₹1,680

Test

Q.12 Easy Percentage

A student scored 72% in Math, 68% in Science, and 80% in English. What is the average percentage?

A 72%

B 73.33%

C 74%

D 75%

Correct Answer: B. 73.33%

EXPLANATION

Average percentage = (72 + 68 + 80)/3 = 220/3 = 73.33%

Test

Q.13 Easy Percentage

In 2024, a company's revenue was ₹50 crore. In 2025, it is projected to be 35% more. What is the projected 2025 revenue?

A ₹67.5 crore

B ₹70 crore

C ₹65 crore

D ₹72.5 crore

Correct Answer: A. ₹67.5 crore

EXPLANATION

Projected revenue = 50 × 1.35 = ₹67.5 crore

Test

Q.14 Easy Percentage

The price of petrol increased from ₹95 to ₹114 per liter in 2024. What is the percentage increase?

A 18%

B 20%

C 22%

D 25%

Correct Answer: B. 20%

EXPLANATION

Percentage increase = [(114-95)/95] × 100 = (19/95) × 100 = 20%

Test

Q.15 Easy Percentage

A trader buys an item for ₹800 and sells it at a loss of 12.5%. What is the selling price?

A ₹700

B ₹750

C ₹675

D ₹725

Correct Answer: A. ₹700

EXPLANATION

SP = CP × (1 - loss%) = 800 × (1 - 0.125) = 800 × 0.875 = ₹700

Test

Q.16 Easy Percentage

A vendor buys apples at ₹30 per kg and sells at ₹42 per kg. What is his profit percentage?

A 30%

B 40%

C 50%

D 35%

Correct Answer: B. 40%

EXPLANATION

Profit% = [(42-30)/30] × 100 = (12/30) × 100 = 40%

Test

Q.17 Easy Percentage

If the population of a city increases by 5% annually, what will be the population after 2 years if the current population is 10,00,000?

A 11,02,500

B 11,05,000

C 11,10,250

D 11,15,000

Correct Answer: A. 11,02,500

EXPLANATION

Population after 2 years = 10,00,000 × (1.05)² = 10,00,000 × 1.1025 = 11,02,500

Test

Q.18 Easy Percentage

A's salary is 40% more than B's salary. If their combined salary is ₹84,000, what is B's salary?

A ₹35,000

B ₹45,000

C ₹50,000

D ₹40,000

Correct Answer: A. ₹35,000

EXPLANATION

Let B's salary = x. A's salary = 1.4x. x + 1.4x = 84,000. 2.4x = 84,000. x = ₹35,000

Test

Q.19 Easy Percentage

Two successive discounts of 20% and 15% are given on an article. What is the effective discount percentage?

A 32%

B 35%

C 38%

D 40%

Correct Answer: A. 32%

EXPLANATION

Effective discount = 20 + 15 - (20×15)/100 = 35 - 3 = 32%

Test

Q.20 Easy Percentage

A shopkeeper sells an item at ₹450 after giving a 10% discount on the marked price. What is the marked price?

A ₹500

B ₹550

C ₹480

D ₹520

Correct Answer: A. ₹500

EXPLANATION

If SP = ₹450 and discount = 10%, then MP × 0.9 = 450. MP = 450/0.9 = ₹500

Test

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Quantitative Aptitude Percentage

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