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Quantitative Aptitude

Quantitative aptitude questions for competitive exams

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Difficulty: All Easy Medium Hard 91–100 of 429

Topics in Quantitative Aptitude

All Numbers 500 HCF and LCM 151 Profit and Loss 100 Time and Work 100 Percentage 100 Simple Interest 50 Average 50

Q.91 Easy Time and Work

Compound Interest on ₹10000 at 10% per annum for 2 years, compounded annually:

A ₹2100

B ₹2000

C ₹1900

D ₹1800

Correct Answer: A. ₹2100

EXPLANATION

A = P(1 + r/100)^n = 10000(1.1)^2 = 10000 × 1.21 = 12100. CI = 12100 - 10000 = ₹2100

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Q.92 Easy Time and Work

Simple Interest on ₹5000 at 8% per annum for 2.5 years is:

A ₹900

B ₹1000

C ₹1200

D ₹1500

Correct Answer: B. ₹1000

EXPLANATION

SI = (P × R × T)/100 = (5000 × 8 × 2.5)/100 = 100000/100 = ₹1000

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Q.93 Easy Time and Work

A boat's speed in still water is 15 km/h and the speed of current is 3 km/h. If the boat travels 36 km upstream and returns, what is the total time taken?

A 4 hours

B 5 hours

C 5.5 hours

D 6 hours

Correct Answer: B. 5 hours

EXPLANATION

Upstream speed = 15-3 = 12 km/h. Downstream speed = 15+3 = 18 km/h. Time upstream = 36/12 = 3 hours. Time downstream = 36/18 = 2 hours. Total = 5 hours

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Q.94 Easy Time and Work

If the cost price of an article is ₹800 and it is sold at 25% profit, what is the selling price?

A ₹900

B ₹950

C ₹1000

D ₹1100

Correct Answer: C. ₹1000

EXPLANATION

Profit = 25% of 800 = 200. Selling Price = 800 + 200 = ₹1000

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Q.95 Easy Time and Work

A train 240m long crosses a platform 360m long in 30 seconds. What is the speed of the train in km/h?

A 70.2 km/h

B 72 km/h

C 75.6 km/h

D 80 km/h

Correct Answer: B. 72 km/h

EXPLANATION

Total distance = 240 + 360 = 600m. Time = 30 seconds. Speed = 600/30 = 20 m/s = 20 × 3.6 = 72 km/h

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Q.96 Easy Profit and Loss

A fruit seller buys mangoes at 4 for ₹10 and sells at 5 for ₹14. What is the profit percentage?

A 10%

B 12%

C 11%

D 9%

Correct Answer: B. 12%

EXPLANATION

CP per mango = 10/4 = 2.5. SP per mango = 14/5 = 2.8. Profit = 0.3. Profit% = (0.3/2.5) × 100 = 12%

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Q.97 Easy Profit and Loss

A retailer marks articles 40% above cost price but gives 20% discount on marked price. What is the net profit percentage?

A 12%

B 18%

C 16%

D 20%

Correct Answer: A. 12%

EXPLANATION

Let CP = 100. MP = 140. After 20% discount, SP = 140 × 80/100 = 112. Profit% = 12%

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Q.98 Easy Profit and Loss

A vendor buys oranges at ₹8 per dozen and sells them at ₹1 per orange. What is his profit percentage?

A 50%

B 75%

C 60%

D 40%

Correct Answer: A. 50%

EXPLANATION

CP per orange = 8/12 = ₹2/3. SP per orange = ₹1. Profit = 1 - 2/3 = ₹1/3. Profit% = (1/3)/(2/3) × 100 = 50%

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Q.99 Easy Profit and Loss

A merchant sold goods for ₹3,000 at a gain of 25%. What is the cost price?

A ₹2,200

B ₹2,400

C ₹2,500

D ₹2,600

Correct Answer: B. ₹2,400

EXPLANATION

SP = CP × 1.25. 3000 = CP × 1.25. CP = 3000/1.25 = ₹2,400

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Q.100 Easy Profit and Loss

A shopkeeper marks goods 25% above cost price and gives a discount of 10%. What is his net profit percentage?

A 10%

B 12.5%

C 13.5%

D 15%

Correct Answer: B. 12.5%

EXPLANATION

Let CP = 100. MP = 125. SP = 125 × 0.90 = 112.5. Profit% = (12.5/100) × 100 = 12.5%

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