Chapter SH, Problem 17PPA

Solution

The number whose $75\%\text{ is 15}$ .

  $20$

Given:

  $75\%\text{ is 15}$

Concept Used:

To find the number whose p % is equal to x , divide the number x by the fractions $\frac{p}{100}$ .

Calculation:

In order to find the number whose $75\%\text{ is 15}$ , divide the given number by the fractional form of the percent and simplify further as shown below

  $\begin{array}{c}\text{Required number}=\frac{15}{75\%}\\ =\frac{15}{\frac{75}{100}}\\ =15\times \frac{100}{75}\\ =\frac{1500}{75}\\ =20\end{array}$

Thus, the required number is $20$ .