6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

A, B and C are three students. A got 18% more marks than B and 12% less than C. If B got 220 marks, then how much marks C has got?

A) 295	B) 230
C) 224	D) 245

Answer & Explanation Answer: A) 295

Explanation:

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Q:

0.06% of 250% of 1600 is _________.

A) 24	B) 0.24
C) 0.024	D) 2.4

Answer & Explanation Answer: D) 2.4

Explanation:

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Q:

The value of

$\left [ \frac{2^{n}+2^{n-1}}{2^{n+1}-2^{n}} \right ]$ is:

Answer

$\frac{2^{n} + \frac{2^{n}}{2}}{2 x 2^{n} - 2^{n}} = \frac{2^{n} (1 + \frac{1}{2})}{2^{n} (2 - 1)} = \frac{3}{2}$

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Subject: Numbers Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

20 3498

Q:

A bottle is full of dettol. One-third of it is taken out and then an equal amount of water is poured into the bottle to fill it. This operation is done four times. Find the final ratio of dettol and water in the bottle.

A) 13 : 55	B) 20 : 74
C) 16 : 65	D) 10 : 48

Answer & Explanation Answer: C) 16 : 65

Explanation:

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Q:

What will be the acute angle between the hour-hand and the minute-hand at 4:37 p.m.?

A) 18.5°	B) 83.5°
C) 18°	D) 6.5°

Answer & Explanation Answer: B) 83.5°

Explanation:

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Q:

The cost price of an article is Rs x. It is marked up by 200%. It is sold at Rs 540 after giving 25% discount. What is the value of x (in Rs)?

A) 360	B) 250
C) 300	D) 240

Answer & Explanation Answer: D) 240

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Q:

25 divided by 7

A) 3.571	B) 35.71
C) 0.351	D) 0.0357

Answer & Explanation Answer: A) 3.571

Explanation:

Here we have 25 divided by 7.

25 will not go directly in 7

Hence, we get the result in decimals.

25/7 = 3.571.

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4 3491

Q:

In a class of 80 students and 5 teachers, each student got shopping coupons that are 15% of the total number of students and each teacher got shopping coupons, that are 25% of the total number of students. How many shopping coupons were there?

A) 960	B) 1000
C) 1060	D) 100

Answer & Explanation Answer: C) 1060

Explanation:

Given total number of students = 80

Total teachers = 5

Number of coupons each student got = 15 x 80/100 = 12

Number of coupons each teacher got = 25 x 80/100 = 20

Therefore, total number of shopping coupons = 80 x 12 + 5 x 20 = 960 + 100 = 1060.

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Quantitative Aptitude - Arithmetic Ability Questions

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