6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Find the odd word/letters/number pair from the given alternatives.

(A) AE (B) CG (C) JN (D) MO

A) A	B) B
C) C	D) D

Answer & Explanation Answer: D) D

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

1 36752

Q:

A man buys oranges at Rs 5 a dozen and an equal number at Rs 4 a dozen. He sells them at Rs 5.50 a dozen and makes a profit of Rs 50. How many oranges does he buy?

A) 30 dozens	B) 40 dozens
C) 50 dozens	D) 60 dozens

Answer & Explanation Answer: C) 50 dozens

Explanation:

Cost Price of 2 dozen oranges Rs. (5 + 4) = Rs. 9.
Sell price of 2 dozen oranges = Rs. 11.
If profit is Rs 2, oranges bought = 2 dozen.
If profit is Rs. 50, oranges bought = (2/2) * 50 dozens = 50 dozens.

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Filed Under: Profit and Loss

173 36737

Q:

The length and breadth of a rectangle are 21 cm and 20 cm respectively. Find its area (in cm2).

A) 420	B) 840
C) 80	D) 160

Answer & Explanation Answer: A) 420

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

0 36660

Q:

Find the surface area (in sq.cm) of a sphere of diameter 14 cm.

A) 616	B) 4699
C) 8628	D) 6922

Answer & Explanation Answer: A) 616

Explanation:

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

3 36651

Q:

How long will a boy take to run round a square field of side 35 meters, If he runs at the rate of 9 km/hr?

A) 50 sec	B) 52 sec
C) 54 sec	D) 56 sec

Answer & Explanation Answer: D) 56 sec

Explanation:

Speed = 9 km/hr = 9 x (5/18) m/sec = 5/2 m/sec

Distance = (35 x 4) m = 140 m.

Time taken = 140 x (2/5) sec= 56 sec

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Filed Under: Time and Distance

134 36636

Q:

In how many years will a sum of Rs.800 at 10% per annum compounded semi annually become Rs.926.10

A) 1.5	B) 2.5
C) 3.5	D) 4.5

Answer & Explanation Answer: A) 1.5

Explanation:

Let the time be 'n' years, Then

$800 \times {(1 + \frac{5}{100})}^{2} n = 926.10 < = > {(1 + \frac{5}{100})}^{2} n = \frac{9261}{8000} < = > {(\frac{21}{20})}^{2} n = {(\frac{21}{10})}^{3}$

n = 3/2 or n= 1 $\frac{1}{2}$ Years

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Filed Under: Simple Interest
Exam Prep: GRE

125 36620

Q:

A boy multiplied 987 by a certain number and obtained 559981 as his answer. If in the answer both 98 are wrong and the other digits are correct , then the correct answer would be :

A) 553681	B) 555181
C) 555681	D) 556581

Answer & Explanation Answer: C) 555681

Explanation:

987 = 3 * 7 * 47.
So, the required number must be divisible by each one of 3, 7, 47
553681 => (Sum of digits = 28, not divisible by 3)
555181 => (Sum of digits = 25, not divisible by 3)
555681 is divisible by each one of 3, 7, 47.

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Filed Under: Numbers

61 36550

Q:

In the following question, select the odd letter/letters from the given alternatives.

A) CDFI	B) HIKN
C) JKMP	D) LMPS

Quantitative Aptitude - Arithmetic Ability Questions

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