Question

x% of y is y% of what?

Answer 1

Answer:

y% of x

Step-by-step explanation:

X percent of y means xy/100.

y percent of x means yx/100.

of course, xy/100 = yx/100.

So x percent of y = y percent of x.

Answer 2

Answer:

x% of y is y% of x.

Step-by-step explanation:

$Let \: k \: to \: be \: number\\ x\% \times y = y\% \times k \\ \frac{x}{100} \times y = \frac{y}{100} \times k \\ So \\ k = \frac{x}{100} \times y \times \frac{100}{y} \\k\:= x$

Hence, x is the number.