6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Find the odd man out?

16, 254, 1296, 4096, 10000

A) 16	B) 254
C) 1296	D) 10000

Answer & Explanation Answer: B) 254

Explanation:

The given series 16, 254, 1296, 4096, 10000 follows a pattern that

$2^{4}, 4^{4}, 6^{4}, 8^{4}, 10^{4}, . . .$

Hence, the odd man in the series is 4 x 4 x 4 x 4 = 256 not 254.

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Filed Under: Odd Man Out
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3 52929

Q:

How many days are there in x weeks x days?

A) 7x * x	B) 8x
C) 14x	D) 7

Answer & Explanation Answer: B) 8x

Explanation:

x weeks x days = (7x + x) days = 8x days.

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Filed Under: Calendar

303 52825

Q:

Evaluate $\sqrt{93 + \sqrt{32 + \sqrt{274 + \sqrt{225}}}}$

A) 9	B) 11
C) 12	D) 10

Answer & Explanation Answer: D) 10

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 52795

Q:

Find the compound interest on Rs. 16,000 at 20% per annum for 9 months, compounded quarterly

A) 2422	B) 2522
C) 2622	D) 2722

Answer & Explanation Answer: B) 2522

Explanation:

Principal = Rs. 16000; Time = 9 months =3 quarters;
Rate = 20% per annum = 5% per quarter.
Amount = Rs. [16000 x (1+(5/100))3] = Rs. 18522.

CJ. = Rs. (18522 - 16000) = Rs. 2522

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Filed Under: Compound Interest
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89 52774

Q:

How much time will take for an amount of Rs. 450 to yield Rs. 81 as interest at 4.5% per annum of simple interest ?

A) 4 years	B) 2.5 years
C) 3.5 years	D) 2 years

Answer & Explanation Answer: A) 4 years

Explanation:

Time = (100 x 81) / (450 x 4.5) = 4 years.

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Filed Under: Simple Interest
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109 52750

Q:

$\frac{{(0.3)}^{3} + {(0.2)}^{3}}{{(0.3 - 0.2)}^{2}} = ?$

A) 5/2	B) 2
C) 7/2	D) 3/2

Answer & Explanation Answer: C) 7/2

Explanation:

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Filed Under: Simplification
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0 52742

Q:

In a 1 km race, A beats B by 28 meters in 7sec. Find A's time over the course?

A) 5min,4sec	B) 4min,3sec
C) 2min,3sec	D) 3min,4sec

Answer & Explanation Answer: B) 4min,3sec

Explanation:

B covers 28 meters in 7sec. So, B's time over the course = (7/28)*100 =250 sec.

Whereas A's time over the course = 250 -7 = 243 sec.

i.e A's time over the course is 4min , 3 sec.

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Filed Under: Races and Games

83 52733

Q:

Find the value of $\{{(216)}^{\frac{2}{3}} + {(36)}^{\frac{- 1}{2}}\}$

A) 216/6	B) 218/6
C) 215/6	D) 217/6

Quantitative Aptitude - Arithmetic Ability Questions

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