6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

30 women do half of the total work in 30 days. How many more women will be required to complete the remaining work in 10 days?

A) 45	B) 30
C) 60	D) 80

Answer & Explanation Answer: C) 60

Explanation:

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Filed Under: Time and Work
Exam Prep: Bank Exams

0 2087

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 2087

Q:

If a shop keeper marks his goods for a certain amount so as to get 25% gain after allowing a discount of 20%, then his marked price is

A) Rs.156.25	B) Rs.146.25
C) Rs.166.25	D) Rs.150.25

Answer & Explanation Answer: A) Rs.156.25

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

3 2085

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 2085

Q:

A man donates 30% of his wealth to charity. 30% and 25% of the remaining wealth to his wife and son respectively. The rest he divides equally between his three daughters. One of his daughter gets Rs 42 lakh as her share. What was the man's wealth (in Rs lakhs)?

A) 280	B) 400
C) 500	D) 350

Answer & Explanation Answer: B) 400

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

0 2084

Q:

Sister can bake 50 cakes in 25 hours, Sister and Mummy together can bake 75 cakes in 15 hours. How many cakes Mummy can bake in 15 hours?

A) 25	B) 45
C) 20	D) 10

Answer & Explanation Answer: B) 45

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Filed Under: Time and Work
Exam Prep: Bank Exams

2 2083

Q:

If m+n=1, then the value of $m^{3} + n^{3} + 3 m n$ is equal to

A) 0	B) 1
C) 2	D) 3

Answer & Explanation Answer: B) 1

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Filed Under: Quantitative Aptitude - Arithmetic Ability

0 2080

Q:

Expand and simplify ${(2 x + 5)}^{2} * (4 x - 1) - (3 x^{3} - 16 x^{2} + 25 x - 21)$

A) 13x3 + 92x2 - 55x + 4	B) 13x3 - 92x2 - 55x - 4
C) 13x3 + 92x2 + 55x - 4	D) 13x3 - 92x2 + 55x + 4

Quantitative Aptitude - Arithmetic Ability Questions

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