6500+ Quantitative Aptitude Questions and Answers With Explanation

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

Answer & Explanation Answer: A) 24

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

2 2011

Q:

A vendor buys some bananas at the rate of 2 for Re 1 and sells at the rate of 10 for Rs 7. What will be the result?

A) 40 percent loss	B) 28.57 percent gain
C) 40 percent gain	D) 28.5 percent loss

Answer & Explanation Answer: C) 40 percent gain

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

0 2011

Q:

If x = 999, y = 1000, z = 1001, then the value of $\frac{x^{3} + y^{3} + z^{3} - 3 xyz}{x - y + z}$ is

A) 1000	B) 9000
C) 1	D) 9

Answer & Explanation Answer: D) 9

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 2011

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

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 2011

Q:

In a trapezium ABCD, AB and DC are parallel sides and ∠ ADC = 90°. If AB = 15 cm, CD = 40 cm and diagonal AC = 41 cm. Then the area of the trapezium ABCD is

A) 245 cm2	B) 240 cm2
C) 247.5 cm2	D) 250 cm2

Answer & Explanation Answer: C) 247.5 cm2

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

0 2011

Q:

In the given figure, a circle touches the sides of the quadrilateral PQRS. The radius of the circle is 9 cm. RSP = SRQ = 60 deg and PQR = QPS = 120 deg. What is the perimeter (in cm) of the quadrilateral?

A) 36√3	B) 24√3
C) 48√3	D) 32

Quantitative Aptitude - Arithmetic Ability Questions

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