6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If a - b = 2 and ab = 8, then what is the value of $a^{3} - b^{3}$ ?

A) 65	B) 34
C) 43	D) 56

Answer & Explanation Answer: D) 56

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Filed Under: Simplification
Exam Prep: Bank Exams

1 1958

Q:

If one root of the equation ${Ax}^{2} + Bx + C = 0$ is two and a half times the others, then which of the following is TRUE?

A) 7B2 = 3 CA	B) 7B2 = 4 CA
C) 7B2 = 36 CA	D) 10B2 = 49 CA

Answer & Explanation Answer: D) 10B2 = 49 CA

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1958

Q:

Square of (3x – 5xy) is

A) 9x2 - 30x2y + 25x2y2	B) 9x2 - 15x2y + 25x2y2
C) 25x2 - 15x2y + 9x2y2	D) 25x2 - 30x2y + 9x2y2

Answer & Explanation Answer: A) 9x2 - 30x2y + 25x2y2

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1957

Q:

At 24% discount the selling price of a washing machine is Rs 38000, what is the selling price if the discount is 40%?

A) Rs 18000	B) Rs 30000
C) Rs 22320	D) Rs 31920

Answer & Explanation Answer: B) Rs 30000

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Filed Under: Percentage
Exam Prep: Bank Exams

3 1957

Q:

The simplified form of ${(4 x + 3)}^{2} . (3 x - 5) - (4 x^{3} - 12 x^{2} + 9 x - 20)$ is

A) 6x2- 48x - 50	B) 24x3 + 2x2 - 32x - 15
C) 44x3 + 4x2 - 102x - 25	D) 24x3 + 8x2 - 42x - 50

Answer & Explanation Answer: C) 44x3 + 4x2 - 102x - 25

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Filed Under: Square Roots and Cube Roots
Exam Prep: AIEEE , Bank Exams , CAT

0 1957

Q:

Find x, if $\sqrt{5 x - 6} + \sqrt{5 x + 6} = 6$

A) -4	B) 0
C) 2	D) 4

Answer & Explanation Answer: C) 2

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1956

Q:

The sum of two positive integers is 80 & difference between them is 20. Then what is difference of squares of those numbers ?

A) 1400	B) 1600
C) 1800	D) 2000

Answer & Explanation Answer: B) 1600

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1956

Q:

If $\frac{11 - 13 x}{x} + \frac{11 - 13 y}{y} + \frac{11 - 13 z}{z} = 5$ then what is the value of $\frac{1}{x} + \frac{1}{y} + \frac{1}{z} = ?$

A) 1	B) 13/11
C) 13/5	D) 4

Quantitative Aptitude - Arithmetic Ability Questions

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