The square root of 0 . 4 is

ABC26GN1416 · Square Roots and Cube Roots

Subject: General Aptitude · Chapter: Square Roots and Cube Roots · Exam: 2004 · Marks: · Difficulty:

The square root of $0 . \overline{4}$ is

(a)$0 . \overline{6}$

(b)$0 . \overline{7}$

(c)$0 . \overline{8}$

(d)$0 . \overline{9}$

Answer

Answer (as printed): A

Explanation

$\sqrt{0 . \overline{4}}=\sqrt{\frac{4}{9}}=\frac{2}{3}=0.666 \ldots .=0 . \overline{6}$.

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