If 8% of x=4% of y, then 20% of x is · ABC26GN2340
Subject: General Aptitude · Chapter: Percentage
If 8\% of $x=4 \%$ of $y$, then 20\% of $x$ is
(a)10\% of $y$
(b)16\% of $y$
(c)80\% of $y$
(d)None of these
Answer
Answer (as printed): A
Explanation
8\% of $x=4 \%$ of $y \Rightarrow \frac{8}{100} x=\frac{4}{100} y \Rightarrow x=\frac{1}{2} y$. $\therefore 20 \%$ of $x=20 \%$ of $\frac{1}{2} y=10 \%$ of $y$.
Explanation as extracted from the printed page; notation may be imperfect.