6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Read the data given below and answer the questions based on it.

In the CBSE Board exams last year, 53% passed in Biology, 61% percent passed in English, 60% in Social studies, 24% in Biology and English, 35% in English and social studies, 27% in Biology and social studies and 5% in none.

What is the percentage of students who passed in all subjects?

A) 8	B) 12
C) 7	D) 10

Answer & Explanation Answer: C) 7

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

5 77526

Q:

Solve the following :

123 + 12.3 + 1.23 + 0.123 + 0.0123 = ?

A) 136.7659	B) 136.653
C) 136.6653	D) 136.7760

Answer & Explanation Answer: C) 136.6653

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

2 77472

Q:

12 men can complete a work in 8 days. 16 women can complete the same work in 12 days. 8 men and 8 women started working and worked for 6 days. How many more men are to be added to complete the remaining work in 1 day?

A) 8	B) 12
C) 16	D) 24

Answer & Explanation Answer: B) 12

Explanation:

1 man's 1 day work =1/96 ; 1 woman's 1 day work = 1/192

Work done in 6 days= $6 (\frac{8}{96} + \frac{8}{192}) = 6 \times \frac{1}{8} = \frac{3}{4}$

Remaining work = 1/4

(8 men +8 women)'s 1 day work = $1 (\frac{8}{96} + \frac{8}{192})$ =1/8

Remaining work =1/4 - 1/8 = 1/8

1/96 work is done in 1 day by 1 man

Therefore, 1/8 work will be done in 1 day by 96 x (1/8) =12 men

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Filed Under: Time and Work

326 77456

Q:

The compounded ratio of (2 : 3), (6: 11) and (11 :2) is

A) 1:2	B) 2:1
C) 11:24	D) 36:121

Answer & Explanation Answer: B) 2:1

Explanation:

Compounded Ratio :: When we compound two or more ratio's with each other through product or multiplication, the result is simply a compound ratio.

Thus, the product of two or more ratios; i.e, ab:cd is a ratio compounded of the simple ratios a:c and b:d.

Required compounded ratio = (2/3 x 6/11 x 11/2) = 2/1.

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Filed Under: Ratios and Proportions
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

344 77353

Q:

Find the dividend if the divisor is (x+2), quotient is (4x-5) and the remainder is 12.

A) 4x2+5x+2	B) 4x2+3x+2
C) 4x2-3x+2	D) 4x2+3x-2

Answer & Explanation Answer: B) 4x2+3x+2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 77276

Q:

A man and his wife appear in an interview for two vacancies in the same post. The probability of husband's selection is (1/7) and the probability of wife's selection is (1/5). What is the probability that only one of them is selected ?

A) 2/7	B) 1/7
C) 3/4	D) 4/5

Answer & Explanation Answer: A) 2/7

Explanation:

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Filed Under: Probability

360 77229

Q:

Question :

What is the sum which earned interest ?

Statements :

a. The total simple interest was Rs. 9000 after 9 years.
b. The total of sum and simple interest was double of the sum after 6 years.

A) Only a is sufficient	B) Neither a nor b is sufficient
C) Only b is sufficient	D) Both a and b sufficient

Answer & Explanation Answer: D) Both a and b sufficient

Explanation:

Let the sum be Rs. x

a. gives, S.I = Rs. 9000 and time = 9 years.

b. gives, Sum + S.I for 6 years = 2 x Sum

--> Sum = S.I for 6 years.

Now, S.I for 9 years = Rs. 9000

S.I for 1 year = Rs. 9000/9 = Rs. 1000.

S.I for 6 years = Rs. (1000 x 6)= Rs. 6000.

--> x = Rs. 6000

Thus, both a and b are necessary to answer the question.

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Filed Under: Simple Interest
Exam Prep: GRE , GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

8 77197

Q:

Find x.

693.5 - (47.23 - x) - 82.48 = 8.172.

A) -720.578	B) -555.618
C) -650.078	D) 831.382

Quantitative Aptitude - Arithmetic Ability Questions

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