6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

What is the fourth proportional to 72, 168 and 150?

A) 450	B) 300
C) 350	D) 400

Answer & Explanation Answer: C) 350

Explanation:

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

2 1877

Q:

There is a 4% increase in volume when a liquid freezes to its solid state. The percentage decrease when solid melts to liquid again, is

A) 3 3/13%	B) 4%
C) 4 1/13%	D) 3 11/13%

Answer & Explanation Answer: D) 3 11/13%

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

3 1876

Q:

If $a^{2} \sec^{2} x - b^{2} \tan^{2} x = c^{2}$ then the value of $\sec^{2} x + \tan^{2} x$ is equal to (assume b2 ≠ a2 )

A) b2-a2+2c2b2+a2	B) b2+a2-2c2b2-a2
C) b2-a2-2c2b2+a2	D) b2-a2b2+a2+2c2

Answer & Explanation Answer: B) b2+a2-2c2b2-a2

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1875

Q:

Ram cycles 5 km in the south, and turns left to travel 5 km further. From there, he takes a right turn and travels 5 km more. How far is he from his original position?

A) 5 km	B) 5√5 km
C) 10 km	D) 6 km

Answer & Explanation Answer: B) 5√5 km

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Filed Under: Time and Distance
Exam Prep: Bank Exams

2 1875

Q:

Both S.I. and C.I. is calculated with a similar rate of 10% per annum on a sum of rupees. If C.I. is calculated yearly for two years, then for what period must S.I. be evaluated such that S.I. = C.I.?

A) 4.2 years	B) 2.1 years
C) 1.1 years	D) 1.4 years

Answer & Explanation Answer: B) 2.1 years

Explanation:

Let time period of S.I. be T years.

Then for a principal amount, say P,

ATQ, as, S.I. = C.I. for rate =10%p.a. and

time for C.I. = 2(P x 10 x T)/100 = P{[ (100+10)/100 ]2-1}T/10 = [ 110/100 ]2–1 = [(11/10)2–1] = (121-100)/100T/10 = 21/100T = 21/10 = 2.1 years

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Filed Under: Simple Interest
Exam Prep: Bank Exams
Job Role: Bank PO , Bank Clerk

1 1874

Q:

A train of length 100 m crosses another train of length 150 m, running on a parallel track in the opposite direction in 9 seconds. If the speed of trainhaving length 150 m is 40 km/hr, then what is the speed (in km/hr) of the other train?

A) 30	B) 48
C) 50	D) 60

Answer & Explanation Answer: D) 60

Explanation:

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Filed Under: Problems on Trains
Exam Prep: Bank Exams

0 1874

Q:

In the given figure, MNOP is a parallelogram. PM is extended to Z. OZ intersects MN and PN at Y and X respectively. If OX = 27 cm and XY = 18 cm, then what is the length (in cm) of YZ?

A) 21.4	B) 22.5
C) 23.8	D) 24.5

Answer & Explanation Answer: B) 22.5

Explanation:

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

0 1874

Q:

If $x^{3} + 2 x^{2} - 5 x + k$ is divisible by x + 1, then what is the value of k?

A) -6	B) -1
C) 0	D) 6

Quantitative Aptitude - Arithmetic Ability Questions

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