If √(y)=4 x, then x2y is [SSC-CHSL (10+2) Exam, 2015]

ABC26GN1478 · Square Roots and Cube Roots

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

If $\sqrt{y}=4 x$, then $\frac{x^{2}}{y}$ is [SSC-CHSL (10+2) Exam, 2015]

(a)2

(b)$\frac{1}{16}$

(c)$\frac{1}{4}$

(d)4

Answer

Answer (as printed): B

Explanation

Given $\sqrt{y}=4 x$ $\Rightarrow y=(4 x)^{2}=16 x^{2}$ $\Rightarrow y=16 x^{2}$ $\therefore \frac{x^{2}}{y}=\frac{1}{16}$

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