Chapter 0, Problem 39PO

To determine

The actual number of given percent.

Answer to Problem 39PO

  $62$

Explanation of Solution

Given:

Percent $=50\%$

Number $x=31$

Formula used:

  $x$ is percent of $y$

  $=\frac{x\times 100}{y}\%$

Where,

  $x$ and $y$ are integers.

Calculation:

  $31$ is percent of y $=50\%$

By the formula

  $\begin{array}{c}\frac{31\times 100}{y}=50\%\\ \frac{31\times 100}{y}=50\\ y=\frac{31\times 100}{50}\\ y=62\end{array}$

Conclusion:

Hence, 31 is 50% percent of 62.