6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Among the following which is a rational number?

A) 323	B) 325
C) 324	D) 326

Answer & Explanation Answer: B) 325

Explanation:

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Filed Under: Square Roots and Cube Roots
Exam Prep: Bank Exams

2 4314

Q:

Dianna deposits $725 into a savings account that pays 2.3% simple annual interest. How much interest will Dianna earn after 18 months?

A) 23.01	B) 24.01
C) 25.01	D) 26.01

Answer & Explanation Answer: C) 25.01

Explanation:

I = Prt

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

0 4311

Q:

4 mat-weavers can weave 4 mats in 4 days. At the same rate, how many mats would be woven by 8 mat-weavers in 8 days?

A) 4	B) 8
C) 12	D) 16

Answer & Explanation Answer: D) 16

Explanation:

Let the required number of bottles be x.

More weavers, More mats (Direct Proportion)

More days, More mats (Direct Proportion)

$W a v e r s 4 : 8 D a y s 4 : 8$ :: 4:x

4 x 4 x x = 8 x 8 x 4

=> x= $\frac{8 * 8 * 4}{4 * 4}$

=> x = 16.

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Filed Under: Quantitative Aptitude - Arithmetic Ability

2 4310

Q:

Out of 6 green ball, 4 blue ball, in how many ways we selectone or more balls ?

A) 42	B) 34
C) 31	D) 22

Answer & Explanation Answer: B) 34

Explanation:

7 × 5 = 35

35 – 1 = 34

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Filed Under: Permutations and Combinations

6 4310

Q:

125% as a Fraction?

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

Answer & Explanation Answer: C) 5/4

Explanation:

Literally any percentage means divide by 100.

So $125 % = \frac{125}{100}$ . That can be reduced to 5/4.

To convert to a decimal, you can do long division, dividing 5 into 4.

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

5 4307

Q:

$\sqrt{(\frac{(0.75)^{3}}{1 - 0.75} + [0.75 + {(0.75)}^{2} + 1])} = ?$

A) 1	B) 2
C) 3	D) 4

Answer & Explanation Answer: B) 2

Explanation:

$\sqrt{(\frac{(0.75)^{3}}{1 - 0.75} + [0.75 + (0.75)^{2} + 1])} = \sqrt{\frac{(0.75)^{3} + (1 - 0.75) [(1)^{2} + (0.75)^{2} + 1 \times 0.75]}{1 - 0.75}}$

= $\sqrt{\frac{(0.75)^{3} + [(1)^{3} - (0.75)^{3}]}{1 - 0.75}} = \sqrt{\frac{1}{0.25}} = \sqrt{4} = 2$

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Filed Under: Square Roots and Cube Roots

6 4305

Q:

In 100 m race, A covers the distance in 36 seconds and B in 45 seconds. In this race A beats B by

A) 20 m	B) 25 m
C) 22.5 m	D) 9 m

Answer & Explanation Answer: A) 20 m

Explanation:

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Filed Under: Races and Games

2 4302

Q:

A bank offers 9% p.a. simple interest on an investment. At the end of 4 years the interest earned was $215. How much was invested?

A) 597.22	B) 345
C) 456	D) 378

Quantitative Aptitude - Arithmetic Ability Questions

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