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Quantitative Aptitude

SQUARE ROOT AND CUBE ROOT MCQs

Square Roots, Cube Roots, Squares And Square Roots

Total Questions : 547 | Page 19 of 55 pages
Question 181. $$\sqrt {110.25} \times \sqrt {0.01} \, \div $$    $$\sqrt {0.0025} $$   $$ - $$ $$\sqrt {420.25} $$  equals ?
  1.    0.50
  2.    0.64
  3.    0.73
  4.    0.75
 Discuss Question
Answer: Option A. -> 0.50
Question 182. $$\sqrt {\frac{{0.081 \times 0.484}}{{0.0064 \times 6.25}}} {\text{ }}$$   is equal to ?
  1.    0.9
  2.    0.99
  3.    9
  4.    99
 Discuss Question
Answer: Option B. -> 0.99
Question 183. The square root of $$\left( {7 + 3\sqrt 5 } \right)$$  $$\left( {7 - 3\sqrt 5 } \right)$$   is ?
  1.    $$\sqrt 5 $$
  2.    2
  3.    4
  4.    $$3\sqrt 5 $$
 Discuss Question
Answer: Option B. -> 2
Question 184. The value of $$\sqrt {\frac{{{{\left( {0.03} \right)}^2} + {{\left( {0.21} \right)}^2} + {{\left( {0.065} \right)}^2}}}{{{{\left( {0.003} \right)}^2} + {{\left( {0.021} \right)}^2} + {{\left( {0.0065} \right)}^2}}}} $$       is ?
  1.    0.1
  2.    10
  3.    $${10^2}$$
  4.    $${10^3}$$
 Discuss Question
Answer: Option B. -> 10
Question 185. If $$a = 0.1039{\text{,}}$$   then the value of $$\sqrt {4{a^2} - 4a + 1} $$    $$ + $$ $$3a$$  is ?
  1.    0.1039
  2.    0.2078
  3.    1.1039
  4.    2.1039
 Discuss Question
Answer: Option C. -> 1.1039
Question 186. $${\left( {\sqrt 3 - \frac{1}{{\sqrt 3 }}} \right)^2}$$   simplifies to ?
  1.    $$\frac{3}{4}$$
  2.    $$\frac{4}{{\sqrt 3 }}$$
  3.    $$\frac{4}{3}$$
  4.    None of these
 Discuss Question
Answer: Option C. -> $$\frac{4}{3}$$
Question 187. If $$3a = 4b = 6c$$   and $$a + b + c = 27\sqrt {29} {\text{,}}$$    then $$\sqrt {{a^2} + {b^2} + {c^2}} $$    is ?
  1.    $$3\sqrt {29} $$
  2.    81
  3.    87
  4.    None of these
 Discuss Question
Answer: Option C. -> 87
Question 188. The square root of $${\text{0}}{\text{.}}\overline {\text{4}} $$  is ?
  1.    $$0.\overline 6 $$
  2.    $$0.\overline 7 $$
  3.    $$0.\overline 8 $$
  4.    $$0.\overline 9 $$
 Discuss Question
Answer: Option A. -> $$0.\overline 6 $$
Question 189. $$\sqrt {0.2} = ?$$
  1.    0.02
  2.    0.2
  3.    0.447
  4.    0.632
 Discuss Question
Answer: Option C. -> 0.447
Question 190. The value of $$\sqrt {\frac{{0.16}}{{0.4}}} $$   is = ?
  1.    0.02
  2.    0.2
  3.    0.63
  4.    None of these
 Discuss Question
Answer: Option C. -> 0.63

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