Mathematics · Basic Arithmetic & Number Systems · page 4 of 8

Square Roots and Cube Roots MCQs with Answers

Includes 8 past paper MCQs (marked).

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Square Roots and Cube Roots MCQs (31–40)

10 MCQs with answers and a short one-liner. Hide answers to test yourself.

Past paper MCQs in this chapter · See all past papers

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31.
Which of the following is different from the rest?
Correct Answer: D. $\sqrt{6400}$
One-liner
$\sqrt{6241} = 79$, $(-79)^2 = 6241$, and $79$ are all related to $79$, while $\sqrt{6400} = 80$ is different, so the answer is $\sqrt{6400}$.
32.
The square root of 2304 is?
Correct Answer: B. $48$
One-liner
The square root of $2304$ is $48$.
33.
The largest perfect square between $4$ and $32$ is?
Correct Answer: B. $25$
One-liner
The largest perfect square between $4$ and $32$ is $25$.
34.
Past Paper MCQ
The value of $\sqrt{176} + \sqrt{2401}$ is _?
Correct Answer: A. $15$
One-liner
The value of $\sqrt{176} + \sqrt{2401}$ is $15$.
35.
What number, when multiplied by itself, gives 4 more than 60?
Correct Answer: C. $8$
One-liner
The number is $8$, because $8 \times 8 = 64$, which is $4$ more than $60$.
36.
What is the length of the side of a square whose area is $289 \text{ m}^2$?
Correct Answer: B. $17 \text{ m}$
One-liner
The side length of a square with area $289 \text{ m}^2$ is $17 \text{ m}$, since $\sqrt{289} = 17$.
37.
The square root of $0.49$ is _?
Correct Answer: C. $0.7$
One-liner
The square root of $0.49$ is $0.7$.
38.
The square root of $64$ is?
Correct Answer: D. $8$
One-liner
The square root of $64$ is $8$, since $8 \times 8 = 64$.
39.
Evaluate: $\sqrt{13 + \sqrt{7 + \sqrt{4}}} = \text{?}$
Correct Answer: C. $4$
One-liner
The value of $\sqrt{13 + \sqrt{7 + \sqrt{4}}}$ is $4$.
40.
What is the square root of 13? i.e., $\sqrt{13} = ?$
Correct Answer: A. $3.605$
One-liner
The square root of $13$ is approximately $3.605$ (rounded to three decimal places).

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Square Roots and Cube Roots MCQs with Answers

Square Roots and Cube Roots MCQs (31–40)

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