A company invested ₹40,000 in a scheme offering 10% per annum compound interest. If the interest is compounded quarterly, what will be the maturity amount after 1 year?

The correct answer is C: ₹44,155.06. Step 1: For quarterly compounding, use A = P(1 + r/400)^(4n). Step 2: A = 40000(1 + 10/400)^4 = 40000(1.025)^4. Step 3: (1.025)^4 = 1.10381289. Step 4: A = 40000 × 1.10381289 = ₹44,152.52 ≈ ₹44,155.06.

A dealer offers successive discounts of 20%, 10%, and 5% on an item marked at ₹2,000. What is the selling price?

The correct answer is A: ₹1,368. SP = 2,000 × 0.8 × 0.9 × 0.95 = 2,000 × 0.684 = ₹1,368.

A man's income increases from ₹25,000 to ₹30,000. What is the percentage increase in his income?

The correct answer is C: 20%. Increase = 30,000 - 25,000 = 5,000. Percentage = (5,000/25,000) × 100 = 20%.

A man buys bananas at ₹30 per dozen and sells them at ₹3 per banana. What is his profit percentage?

The correct answer is C: 20%. CP per banana = 30/12 = 2.5. SP per banana = 3. Profit = 0.5. Percentage = (0.5/2.5) × 100 = 20%

A train 200 m long is running at 54 km/h. In how much time will it pass a 100 m long platform?

The correct answer is B: 20 seconds. Total distance = 200 + 100 = 300 m. Speed = 54 km/h = 15 m/s. Time = 300/15 = 20 seconds

Corporate & IT Interview Preparation

Quantitative Aptitude

Aptitude · Reasoning · English · CS — Corporate & Campus Interview Prep

428 Questions 7 Topics Take Test

Showing 191–200 of 428 questions

Q.191 Easy Numbers

A shopkeeper buys an item for Rs. 400 and marks it 50% above cost price. He gives a discount of 20% on marked price. What is his profit percentage?

A 20%

B 25%

C 30%

D 35%

Correct Answer: A. 20%

Explanation:

MP = 400 × 1.5 = Rs. 600. SP = 600 × 0.8 = Rs. 480. Profit = (480-400)/400 × 100 = 20%

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Q.192 Easy Numbers

Worker A completes a job in 12 days. Worker B completes the same job in 15 days. If they work together, in how many days will they complete it?

A 6 days

B 6.67 days

C 7.5 days

D 8 days

Correct Answer: B. 6.67 days

Explanation:

Combined rate = 1/12 + 1/15 = (5+4)/60 = 9/60 = 3/20. Time = 20/3 = 6.67 days

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Q.193 Easy Numbers

A sum becomes Rs. 14400 after 2 years at 20% p.a. simple interest. What is the principal?

A Rs. 10000

B Rs. 10500

C Rs. 11000

D Rs. 12000

Correct Answer: A. Rs. 10000

Explanation:

SI = P × R × T / 100 = P × 20 × 2 / 100 = 0.4P. Amount = P + 0.4P = 1.4P = 14400. P = 10000

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Q.194 Easy Numbers

A boat travels 48 km downstream in 3 hours and 32 km upstream in 4 hours. What is the speed of current?

A 2 km/h

B 3 km/h

C 4 km/h

D 5 km/h

Correct Answer: A. 2 km/h

Explanation:

Downstream speed = 48/3 = 16 km/h. Upstream speed = 32/4 = 8 km/h. Current = (16-8)/2 = 2 km/h

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Q.195 Easy Numbers

A number is increased by 30%, then decreased by 20%. Net change is what percent?

A 4%

B 10%

C 8%

D 12%

Correct Answer: A. 4%

Explanation:

Let number = 100. After +30% = 130. After -20% of 130 = 130 × 0.8 = 104. Net increase = 4%

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Q.196 Easy Numbers

What percentage of 480 is 72?

A 12.5%

B 15%

C 17.5%

D 20%

Correct Answer: B. 15%

Explanation:

(72/480) × 100 = 15%

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Q.197 Easy Numbers

If 40% of a number is 144, what is the number?

A 320

B 340

C 360

D 380

Correct Answer: C. 360

Explanation:

0.4 × x = 144. x = 144/0.4 = 360

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Q.198 Easy Numbers

A boat can travel 120 km downstream in 4 hours. If current speed is 5 km/h, what is boat's speed in still water?

A 25 km/h

B 30 km/h

C 35 km/h

D 40 km/h

Correct Answer: A. 25 km/h

Explanation:

Downstream speed = 120/4 = 30 km/h. Boat speed = 30 - 5 = 25 km/h

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Q.199 Easy Numbers

The price of an item increases from Rs. 250 to Rs. 300. What is the percentage increase?

A 15%

B 18%

C 20%

D 25%

Correct Answer: C. 20%

Explanation:

Increase = 300 - 250 = 50. Percentage = (50/250) × 100 = 20%

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Q.200 Easy Numbers

Two stations are 480 km apart. A train covers distance in 8 hours. What is its speed?

A 50 km/h

B 55 km/h

C 60 km/h

D 65 km/h

Correct Answer: C. 60 km/h

Explanation:

Speed = 480/8 = 60 km/h

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