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Quantitative Aptitude

SQUARE ROOT AND CUBE ROOT MCQs

Square Roots, Cube Roots, Squares And Square Roots

Total Questions : 547 | Page 23 of 55 pages
Question 221. $$99 \times 21 - \root 3 \of ? = 1968$$
  1.    1367631
  2.    111
  3.    1366731
  4.    1367
 Discuss Question
Answer: Option A. -> 1367631
Question 222. $$\root 3 \of {\sqrt {0.000064} } = ?$$
  1.    0.02
  2.    0.2
  3.    2
  4.    None of these
 Discuss Question
Answer: Option B. -> 0.2
Question 223. Value of $$\sqrt {0.01} \times \root 3 \of {0.008} - 0.02$$     is = ?
  1.    0
  2.    1
  3.    2
  4.    3
 Discuss Question
Answer: Option A. -> 0
Question 224. The value of $${\text{ }}\root 3 \of {\frac{{0.2 \times 0.2 \times 0.2 + 0.04 \times 0.04 \times 0.04}}{{0.4 \times 0.4 \times 0.4 + 0.08 \times 0.08 \times 0.08}}} $$        is ?
  1.    0.125
  2.    0.25
  3.    0.5
  4.    0.75
 Discuss Question
Answer: Option C. -> 0.5
Question 225. By what least number must 21600 be multiplied so as to make it perfect cube ?
  1.    6
  2.    10
  3.    20
  4.    30
 Discuss Question
Answer: Option B. -> 10
Question 226. What is the smallest number by which 3600 be divided to make it a perfect cube ?
  1.    9
  2.    50
  3.    300
  4.    450
 Discuss Question
Answer: Option D. -> 450
Question 227. Which smallest number must be added to 710 so that the sum is a perfect cube ?
  1.    11
  2.    19
  3.    21
  4.    29
 Discuss Question
Answer: Option B. -> 19
Question 228. Solved $$\root 4 \of {{{\left( {625} \right)}^3}} = ?$$
  1.    $$\root 3 \of {1875} $$
  2.    25
  3.    125
  4.    None of these
 Discuss Question
Answer: Option C. -> 125
Question 229. $$9{x^2} + 25 - 30x$$    can be expressed as the square of = ?
  1.    $$3{x^2} - 25$$
  2.    $$3x + 5$$
  3.    $$ - 3x - 5$$
  4.    $$3x - 5$$
 Discuss Question
Answer: Option D. -> $$3x - 5$$
Question 230. If $$\sqrt y = 4x{\text{,}}$$   then $$\frac{{{x^2}}}{y}$$  is = ?
  1.    2
  2.    $$\frac{1}{{16}}$$
  3.    $$\frac{1}{4}$$
  4.    4
 Discuss Question
Answer: Option B. -> $$\frac{1}{{16}}$$

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