Chapter 6.1, Problem 15IP

To determine

Find the percentage of $21$ in $50$ .

Answer to Problem 15IP

The percentage of $21$ is $42\%$ .

Explanation of Solution

Given:

It is given in the question that the two numbers are given $21and50$ .

Concept Used:

In this, use the concept of percent proportion such that the ratio of given two number will equal to the ratio of $p/100$ .

Calculation:

Here,

  $\begin{array}{l}\frac{21}{50}=\frac{p}{100}\\ p\cdot 50=21\cdot 100\\ p=\frac{21\times 100}{50}\\ p=\frac{2100}{50}\\ p=42\%\end{array}$

Conclusion:

The percentage is $42\%$ .