6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

B starts 4.5 minutes after A from the same point, for a place at a distance of 3.5 miles from the starting point. A on reaching the destination turns back and walk a mile where he meets B. If A's speed is a mile in 6 minutes then B's speed is a mile in ____ minutes?

A) 8	B) 10
C) 12	D) 9

Answer & Explanation Answer: D) 9

Explanation:

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Filed Under: Time and Distance
Exam Prep: Bank Exams

5 2814

Q:

In the diagram, M is the midpoint of YZ, angle XMZ = 32°, and angle XYZ = 16°. The measure of angle XZY is:

A) 68°	B) 84°
C) 78°	D) 74°

Answer & Explanation Answer: D) 74°

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability

3 2813

Q:

There is a square field of area ‘X’ square meters. A cylindrical ditch of radius 7 meters and depth 2 meters is dug, and the earth is taken out and spread over the remaining part of the square field, the height of square field which goes up by 0.77 meters. What is the value of ‘X’ ?

A) 548 sq. m	B) 524 sq. m
C) 518 sq. m	D) 554 sq. m

Answer & Explanation Answer: D) 554 sq. m

Explanation:

Volume of the cylindrical ditch = πrxrh = 22/7 ×7×7×2 = 308 sq.m

Area of remaining field = (X −πrxr) sq.m

= (X − 154)

ATQ –

(X – 154) ×0.77 = 308

(X – 154) = 400

X= 554 sq.m

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Filed Under: Area
Exam Prep: AIEEE , Bank Exams

1 2805

Q:

The value of $1 + 2^{2} + 2^{3} + 2^{4} + . . . + 2^{9}$ is

A) 255	B) 511
C) 1021	D) 2047

Answer & Explanation Answer: C) 1021

Explanation:

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Filed Under: Numbers
Exam Prep: Bank Exams , CAT

9 2804

Q:

What is the LCM of 120 and 450?

A) 2400	B) 1800
C) 3600	D) 4800

Answer & Explanation Answer: B) 1800

Explanation:

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Filed Under: HCF and LCM
Exam Prep: Bank Exams

14 2803

Q:

If the mean of m observations out of n observations is n and the mean of remaining observations is m, then what is the mean of all n observations?

A) 2m –m^2/n	B) 2m –m/n
C) 2m	D) 2m –m

Answer & Explanation Answer: A) 2m –m^2/n

Explanation:

Mean of m observations is n

Mean of n-m observations is m

So total = nm+ (n-m)m

Total observations = n

Mean = Total / Total observations = (2mn-m^2)/n = 2m –m^2/n

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Filed Under: Simplification
Exam Prep: Bank Exams

0 2802

Q:

A, B and C are three students. A got 36% less marks than B and 16% more marks than C. If B got 145 marks, then what are the marks got by C?

A) 120	B) 110
C) 80	D) 75

Answer & Explanation Answer: C) 80

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

4 2801

Q:

Price of petrol increased from Rs 60/liter to Rs 75/liter. How much should the consumption of petrol be reduced (in %) so as to increase expenditure by only 10%?

A) 12	B) 20
C) 15	D) 18

Quantitative Aptitude - Arithmetic Ability Questions

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