ABC26GN1465 · Square Roots and Cube Roots

Subject: General Aptitude · Chapter: Square Roots and Cube Roots · Exam: · Marks: · Difficulty:

The cube root of . 000216 is

(a). 6

(b). 06

(c). 006

(d)None of these

Answer

Answer (as printed): B

Explanation

$(.000216)^{1 / 3}=\left(\frac{216}{10^{6}}\right)^{1 / 3}$ $$=\left(\frac{6 \times 6 \times 6}{10^{2} \times 10^{2} \times 10^{2}}\right)^{1 / 3}=\frac{6}{10^{2}}=\frac{6}{100}=.06 .$$

Explanation as extracted from the printed page; notation may be imperfect.

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