6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

A can do as much work in 4 days as B can do in 5, and B can do as much work in 6 days as C in 7. In what time will C do a piece of work which A can do in a week ?

A) 10 5/24 days	B) 4 4/5 days
C) 6 8/15 days	D) 12 6/19 days

Answer & Explanation Answer: A) 10 5/24 days

Explanation:

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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

If the present ages of a father and his son are 48 years and 28.8 years old respectively, then the father can say to his son, "I was ......... of your present age when you were born".

A) half	B) two-third
C) one-fifth	D) one-third

Answer & Explanation Answer: B) two-third

Explanation:

The present age of Father (f) = 48 and present age of son (s) = 28.8
The age of father at his sons birth is 48 - 28.8 = 19.2
Therefore the age of father was 2/3rd of his son's age at the time of his sons birth

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Filed Under: Problems on Ages
Exam Prep: AIEEE , Bank Exams , CAT

1 1726

Q:

Find the curved surface area (in cm²) of a hemisphere of diameter 28 cm

A) 1152	B) 1024
C) 956	D) 1232

Answer & Explanation Answer: D) 1232

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

One of the internal angle of a rhombus is 60° and length of its shorter diagonal is 8 cm. What is the area of the rhombus?

A) 64√3 sq cm	B) 32√2 sq cm
C) 64√2 sq cm	D) 32√3 sq cm

Answer & Explanation Answer: D) 32√3 sq cm

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

If $\tan^{2} θ + c o t^{2} θ = 2$ , then what is the value of $2^{s e c θ \cos e c θ}$ ?

A) 0	B) 1
C) 2	D) 4

Answer & Explanation Answer: D) 4

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1726

Q:

x and y are two numbers such that their mean proportion is 9 and third proportion is 243. What is the value of x and y?

A) 3 and 9	B) 3 and 27
C) 6 and 27	D) 6 and 81

Answer & Explanation Answer: B) 3 and 27

Explanation:

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

1 1726

Q:

A carpenter can build a cupboard in 64 hours. After 16 hours he takes a break. What fraction of the cupboard is yet to be built?

A) 0.6	B) 0.75
C) 0.2	D) 0.8

Answer & Explanation Answer: B) 0.75

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

2 1725

Q:

If $a^{2} + b^{2} = 80$ and ab = 32, then calculate the value of a-b/a+b.

A) 0.337	B) 0.339
C) 0.333	D) 0.335

Quantitative Aptitude - Arithmetic Ability Questions

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