Square Root and Cube Root for Competitive Exam Prep

Square Root and Cube Root

Q. If the cube of a number is 125, what is the number?

A. 4
B. 5
C. 6
D. 7

Solution

The cube root of 125 is 5, since 5 * 5 * 5 = 125.

Correct Answer: B — 5

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Q. If the cube root of a number is 5, what is the number?

A. 25
B. 100
C. 125
D. 150

Solution

The number is 125, since 5 * 5 * 5 = 125.

Correct Answer: C — 125

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Q. If the square of a number is 16, what is the number?

A. 3
B. 4
C. 5
D. 6

Solution

The square root of 16 is 4, since 4 * 4 = 16.

Correct Answer: B — 4

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Q. If the square of a number is 36, what is the number?

A. 5
B. 6
C. 7
D. 8

Solution

The square root of 36 is 6, since 6 * 6 = 36.

Correct Answer: B — 6

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Q. If the square of a number is 81, what is the number?

A. 7
B. 8
C. 9
D. 10

Solution

The square root of 81 is 9, since 9 * 9 = 81.

Correct Answer: C — 9

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Q. If the square root of a number is 15, what is the number?

A. 225
B. 30
C. 45
D. 60

Solution

The number is 225, since 15 * 15 = 225.

Correct Answer: A — 225

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Q. If the square root of a number is 8, what is the number?

A. 56
B. 64
C. 72
D. 80

Solution

The number is 64, since 8 * 8 = 64.

Correct Answer: B — 64

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Q. What is the cube root of 1,000?

A. 10
B. 20
C. 30
D. 40

Solution

The cube root of 1,000 is 10, since 10 * 10 * 10 = 1,000.

Correct Answer: A — 10

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Q. What is the cube root of 125?

A. 3
B. 4
C. 5
D. 6

Solution

The cube root of 125 is 5, since 5 * 5 * 5 = 125.

Correct Answer: C — 5

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Q. What is the cube root of 27?

A. 2
B. 3
C. 4
D. 5

Solution

The cube root of 27 is 3, since 3 * 3 * 3 = 27.

Correct Answer: B — 3

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Q. What is the cube root of 512?

A. 7
B. 8
C. 9
D. 10

Solution

The cube root of 512 is 8, since 8 * 8 * 8 = 512.

Correct Answer: B — 8

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Q. What is the cube root of 64?

A. 2
B. 3
C. 4
D. 5

Solution

The cube root of 64 is 4, since 4 * 4 * 4 = 64.

Correct Answer: C — 4

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Q. What is the square root of 196?

A. 12
B. 13
C. 14
D. 15

Solution

The square root of 196 is 14, since 14 * 14 = 196.

Correct Answer: C — 14

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Q. What is the square root of 225?

A. 13
B. 14
C. 15
D. 16

Solution

The square root of 225 is 15, since 15 * 15 = 225.

Correct Answer: C — 15

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Q. What is the square root of 256?

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

Solution

The square root of 256 is 16, since 16 * 16 = 256.

Correct Answer: C — 16

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Q. What is the square root of 49?

A. 6
B. 7
C. 8
D. 9

Solution

The square root of 49 is 7, since 7 * 7 = 49.

Correct Answer: B — 7

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Q. What is the square root of 81?

A. 8
B. 9
C. 10
D. 11

Solution

The square root of 81 is 9, since 9 * 9 = 81.

Correct Answer: B — 9

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Square Root and Cube Root

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