Question

If a% of x is equal to b% of y, then c% of y is what % of x?

• A. c%
• B. ac/b%
• C. bc/a%
• D. abc%

Answer 1

Answer: (B)

ac/b%

Answer 2

Given : a% of x is equal to b% of y
$\rightarrow ax=by$
$\rightarrow y=\frac{ax}{b}$
Multiplying both sides with $\frac{c}{100}$
$\rightarrow \frac{c}{100}\times y =(\frac{c}{100})\times(\frac{ax}{b})$
$\rightarrow c\%$ of $y$ is $(\frac{ac}{b})\%$ of $x$
The correct answer is (B) : ac/b%