6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

A dealer marks a washing machine for Rs. 7500, and allows a discount of 6% on it. Find the selling price

A) 6850	B) 7050
C) 7250	D) 6950

Answer & Explanation Answer: B) 7050

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

1 2013

Q:

If the radius of a circle is increased by 31% its area increases by ______.

A) 62 percent	B) 31 percent
C) 35.805 percent	D) 71.61 percent

Answer & Explanation Answer: D) 71.61 percent

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams , CAT

1 2013

Q:

If $x^{2} + (1 / x^{2}) = 1$ , then what is the value of $x^{48} + x^{42} + x^{36} + x^{30} + x^{24} + x^{18} + x^{12} + x^{6} + 1$ ?

A) -9	B) 0
C) 1	D) 9

Answer & Explanation Answer: C) 1

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 2013

Q:

What will come in the place of question mark (?) in the following question (You do not have to calculate the exact value)?

√(3099.985 ÷ 62.001 + 14.001) = ?

A) 8	B) 13
C) 18	D) 23

Answer & Explanation Answer: A) 8

Explanation:

Ans.
√(3100 ÷ 62 + 14) = ?
√(50 + 14) = ?
√64 = ?
? = 8

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , GATE

0 2012

Q:

What is the value of [cos (90 + A)÷sec (270 – A)] + [sin (270 + A)÷cosec (630 – A)]?

A) 3 sec A	B) tan A sec A
C) 0	D) 1

Answer & Explanation Answer: D) 1

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

2 2012

Q:

Average age of A and B, 2 years ago was 26. If the age of A, 5 years hence is 40 years, and B is 5 years younger to C, then find the difference between the age of A and C?

A) 6	B) 9
C) 12	D) 15

Answer & Explanation Answer: B) 9

Explanation:

Let the present ages of A & B to be ‘a’ & ‘b’ respectively.
Hence, 2 years ago, their ages must have been (a-2) & (b-2) respectively.
Average of their ages at that time = 26
Hence,
[(a-2)+(b-2)]/2 = 26
(a-2)+(b-2) = 52
a+b = 56
Age of A, 5 year hence = 40 years
Hence, (a+5) = 40
a = 35 years
Hence, b = 56 - 35 = 21 years
B = (C-5)
Hence, C = 21+5 = 26 years
Age difference between A & C = 35 - 26 = 9 years.

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

0 2012

Q:

The first and last terms of an arithmetic progression are 32 and -43. If the sum of the series is -88, then it has how many terms?

A) 16	B) 15
C) 17	D) 14

Answer & Explanation Answer: A) 16

Explanation:

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

0 2012

Q:

The marked price of a helmet is 30% more than its cost price. If the helmet is sold for Rs 744 after a discount of Rs 36, then what will be the profit percentage?

A) 24	B) 18
C) 21	D) 27

Quantitative Aptitude - Arithmetic Ability Questions

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