6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If A's salary is 40% less than that of B, then how much percent is B's salary more than that of A?

A) 33 1⁄3	B) 66 2⁄3
C) 33 2⁄3	D) 66 1⁄3

Answer & Explanation Answer: B) 66 2⁄3

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

2 1981

Q:

The ratio of volume of a cone to that of a cylinder if cylinder radius is reduced by 4 times and its height increased by 8 times of that of the cone, is -

A) 3:2	B) 2:3
C) 5:7	D) 7:5

Answer & Explanation Answer: B) 2:3

Explanation:

Ans. Let radius of the base and height of the cone be ‘r’ & ‘h’ respectively.

Then volume of cone = πr2h/3 For cylinder, radius is reduced by 4 times = r/4 And, height is increased by 8 folds = 8h Volume of cylinder = πR2H = π(r/4)2 (8h) = (16/8)πr2h = πr2h/2 Ratio of volume of cone to volume of cylinder = (πr2h/3) : (πr2h/2) Or, Ratio = 2 : 3.

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: AIEEE , Bank Exams , GATE

1 1979

Q:

The selling price of 6 bananas is equal to the cost price of 8 bananas. Then the percentage of profit is

A) 20	B) 33 1/3
C) 25	D) 30

Answer & Explanation Answer: B) 33 1/3

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

3 1978

Q:

A trader had 16 quintals of wheat. He sold a part of it at 17% profit and the rest at 27% profit, so that he made a total profit of 21%. How much wheat did he sell at 27% profit?

A) 960 kg	B) 640 kg
C) 320 kg	D) 1280 kg

Answer & Explanation Answer: B) 640 kg

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

4 1978

Q:

A trader had 22 quintals of wheat. He sold a part of it at 23% profit and the rest at 33% profit, so that he made a total profit of 27%. How much wheat did he sell at 33% profit?

A) 1320 kg	B) 440 kg
C) 880 kg	D) 1760 kg

Answer & Explanation Answer: C) 880 kg

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

7 1977

Q:

A student multiplied a number by 4/7 instead of 7/4. What is the percentage error in the calculation?

A) 206.25 percent	B) 67.35 percent
C) 33.67 percent	D) 103.13 percent

Answer & Explanation Answer: B) 67.35 percent

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

1 1976

Q:

After deducting 12% from a certain sum and then deducting 25% from the remainder, 2508 is left, then what is the initial sum?

A) 3500	B) 3450
C) 3970	D) 3800

Answer & Explanation Answer: D) 3800

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

4 1976

Q:

If a : b = c : d = 1 : 6, then what is the value of $\frac{a^{2} + c^{2}}{b^{2} + d^{2}}$ ?

A) 1/600	B) 1/60
C) 1/36	D) 1/360

Quantitative Aptitude - Arithmetic Ability Questions

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