6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

What value should come in place of the question mark (?) in the following question?

${(?)}^{2} % of 650 = {(20)}^{2} + 4^{2}$

A) 8	B) 64
C) 8	D) 642

Answer & Explanation Answer: A) 8

Explanation:

$?^{2} = \frac{400 + 16}{650} x 100 ? = 8$

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

0 4405

Q:

In the following question, select the odd word pair from the given alternatives.

A) Net – Badminton	B) Gloves – Boxing
C) Players – Chess	D) Ball – Cricket

Answer & Explanation Answer: B) Gloves – Boxing

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 4405

Q:

Which of the given options is the pattern of the sequence 1, 5, 11, 19, 29?

A) x2 + x - 1	B) x2 + x + 1
C) x2 + x - 2	D) x2 - x - 1

Answer & Explanation Answer: A) x2 + x - 1

Explanation:

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

1 4404

Q:

In how many ways can a group of 5 men and 2 women be made out of a total of 7 men and 3 women?

A) 54	B) 64
C) 63	D) 36

Answer & Explanation Answer: C) 63

Explanation:

Required number of ways = $(7 C_{5} \times 3 C_{2}) = 63$

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Filed Under: Permutations and Combinations

0 4402

Q:

5 years ago, the mother's age was 3 times of her son's age. 5 years hence, the ratio between the ages of mother and the son becomes 11:5. Find the mother's present age?

Answer

Let the present age's of mother be 'M' and that of her son be 'S'.

According to the given data in the question,

M - 5 = 3(S - 5)

F - 3S = -10 ...............(1)

Then given ,

M + 5 : S + 5 = 11 : 5

=> 5M - 11S = 30 ..............(2)

From (1) & (2), we get

S = 20

Then by substituting S = 20 in (1) or (2), we get

M = 50.

Hence, the present age of mother is M = 50 years.

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Subject: Problems on Ages Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

7 4400

Q:

74.99% of 1299 + 8.98% of 1899 = ?

A) 1378	B) 1301
C) 1212	D) 1197

Answer & Explanation Answer: C) 1212

Explanation:

74.99% of 1299 + 8.98% of 1899 = ?

$? = \frac{75 x 1400}{100} + \frac{9 x 1800}{100} ? = 1050 + 162 ? = 1212 .$

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

8 4400

Q:

10 boys can complete a work in 7 days and 10 girls take 14 days to complete the work. How many days will 5 boys and 10 girls take to complete the work ?

A) 13 days	B) 10 days
C) 7 days	D) 16 days

Answer & Explanation Answer: C) 7 days

Explanation:

1 boy's 1 day work = 1/70

1 girl's 1 day work = 1/140

(5 boys + 10 girls)'s 1 day work = (5/70 + 10/140) = (1/14 + 1/14) = 1/7

5 boys and 10 girls will complete the work in 7 days.

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Filed Under: Time and Work
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

2 4398

Q:

Select the option that can replace the question mark (?) in the following equation.

$\frac{{(0.2)}^{3} - {(0.1)}^{3}}{{(0.2 + 0.1)}^{2}}$

A) 1/18	B) 3/40
C) -7/90	D) 7/90

Quantitative Aptitude - Arithmetic Ability Questions

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