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Quantitative Aptitude - Arithmetic Ability

Quantitative Aptitude - Arithmetic Ability Questions

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Square of (3x – 5xy) is

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

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

What is the value of Sin 60° + (1/2)Cosec 45°?

A) (√3 + 2)/2	B) (√3 + √2)/√2
C) (√3 + 2)/√2	D) (√3 + √2)/2

A) (√3 + 2)/2

B) (√3 + √2)/√2

C) (√3 + 2)/√2

D) (√3 + √2)/2

Answer & Explanation Answer: D) (√3 + √2)/2

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1957

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

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

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

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

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 1956

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

A) 1

B) 13/11

C) 13/5

D) 4

Answer & Explanation Answer: D) 4

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1956

There are red (A), yellow(B) and green (C) tokens in a bag. A : B :: 3 : 8, B : C :: 6 : 13. A : B : C is given by

A) 9 : 24 : 52	B) 3 : 48 : 13
C) 3 : 8 : 13	D) 3 : 6 : 13

A) 9 : 24 : 52

B) 3 : 48 : 13

C) 3 : 8 : 13

D) 3 : 6 : 13

Answer & Explanation Answer: A) 9 : 24 : 52

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

0 1955

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

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 1955

If sin P + cosec P = 2, then the value of $\sin^{7} P + {cosec}^{7} P$ is

A) 1	B) 2
C) 3	D) 0

A) 1

B) 2

C) 3

D) 0

Answer & Explanation Answer: B) 2

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1955

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