Square Root And Cube Root(Quantitative Aptitude ) Questions and Answers

Question 1.

  1. The cube root of 729 is

  1.    3
  2.    6
  3.    9
  4.    12
Explanation:-
Answer: Option C. -> 9

Question 2.

\(\sqrt{0.000529}\)  = ?

  1.    0.23
  2.    0.023
  3.    0.0023
  4.    0.203
Explanation:-
Answer: Option B. -> 0.023

Question 3.

\(\sqrt{\frac{12}{192}} = ?\)

  1.    1
  2.    0.5
  3.    0.25
  4.    0.225
Explanation:-
Answer: Option C. -> 0.25

Question 4.

\(\sqrt{792100}\)  = ?

  1.    690
  2.    790
  3.    890
  4.    990
Explanation:-
Answer: Option C. -> 890

Question 5.

\(\frac{560}{\sqrt{?}}\) = 40

  1.    14
  2.    24
  3.    156
  4.    196
Explanation:-
Answer: Option D. -> 196

Question 6.

  1. The square root of 300 × 7.5 is

  1.    0.3 x 30
  2.    0.5 x 30
  3.    0.3 x50
  4.    none of these
Explanation:-
Answer: Option D. -> none of these

Question 7.

\(\sqrt{\frac{1225}{49}}\)  = ?

  1.    5
  2.    15
  3.    25
  4.    35
Explanation:-
Answer: Option A. -> 5

Question 8.

\(\sqrt{50} + \sqrt{162} - \sqrt{98} = ?\)

  1.    28
  2.    78
  3.    88
  4.    98
Explanation:-
Answer: Option D. -> 98

Question 9.

\(\sqrt{48} - \sqrt{75} + \sqrt{27} = ?\)

  1.    6
  2.    9
  3.    12
  4.    15
Explanation:-
Answer: Option C. -> 12

Question 10.

\(\frac{144}{\sqrt{256}}= \frac{\sqrt{?}}{17}\)

  1.    23409
  2.    32409
  3.    32409
  4.    42309
Explanation:-
Answer: Option A. -> 23409