# If 30% of r is equal to 75% of s, what is 50% of s if r=30?

Feb 22, 2018

50 % of $s = 6$.

#### Explanation:

$r = 30$
So,
30% of $r = 30 \times \frac{30}{100} = 9$

This is given to be equal to 75% of s,

 75 % of s = 9

$\therefore s \times \frac{75}{100} = 9$

$\implies s = \frac{900}{75} = 12$

Asked: what is 50% of s if r=30?

therefore 50% of s = 50/100 xx 12 =6

Answer: $6$