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Quantitative Aptitude - Arithmetic Ability/
Square Roots and Cube Roots

Square Roots and Cube Roots Questions

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Determine the value of 'x' when $\sqrt[3]{3^{x}} = 27$

A) 1	B) 3
C) 9	D) 12

A) 1

B) 3

C) 9

D) 12

Answer & Explanation Answer: C) 9

Explanation:

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2 1720

The cube of 105 is

A) 1157625	B) 1175625
C) 1185625	D) 1158625

A) 1157625

B) 1175625

C) 1185625

D) 1158625

Answer & Explanation Answer: A) 1157625

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1 1705

If a is positive and $a^{2} + \frac{1}{a^{2}} = 7, then a^{3} + \frac{1}{a^{3}} = ?$

A) 9	B) 27
C) 18	D) 0

A) 9

B) 27

C) 18

D) 0

Answer & Explanation Answer: C) 18

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6 1680

Which of the numbers given below is the square root of 15376?

A) 122	B) 124
C) 134	D) 128

A) 122

B) 124

C) 134

D) 128

Answer & Explanation Answer: B) 124

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2 1497

Which of the following equations has 3 as a root?

A) x2 - 7x + 12 = 0	B) x2 - 5x + 12 = 0
C) x2 + 3x + 12 = 0	D) x2 + 3x - 12 = 0

A) x2 - 7x + 12 = 0

B) x2 - 5x + 12 = 0

C) x2 + 3x + 12 = 0

D) x2 + 3x - 12 = 0

Answer & Explanation Answer: A) x2 - 7x + 12 = 0

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2 1324

The least number to be added to 435 to make it a perfect square is

A) 8	B) 4
C) 3	D) 6

A) 8

B) 4

C) 3

D) 6

Answer & Explanation Answer: D) 6

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3 1296

The square root of 5776 is

A) 84	B) 76
C) 64	D) 66

A) 84

B) 76

C) 64

D) 66

Answer & Explanation Answer: A) 84

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0 1250

The value of √0.0144 is

A) 0.12	B) 0.012
C) 1.2	D) 0.0012

A) 0.12

B) 0.012

C) 1.2

D) 0.0012

Answer & Explanation Answer: A) 0.12

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0 1237

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