Chapter 6.3, Problem 5GP

To determine

Calculate the number of which $55$ is $20\%$ by using percent equation.

Answer to Problem 5GP

The whole is $275$ .

Explanation of Solution

Given:

It is given in the question that the numbers are $15and20\%$ .

Concept Used:

In this, use the concept of percent equation and the equation is $Part=Percent\cdot Whole$ .

Calculation:

In this, the part and the percent are given, looking for a whole. Let w represent whole.

  $\begin{array}{l}Part=Percent\cdot Whole\\ 55=20\%\cdot w\\ 55=0.2\cdot w\\ \frac{55}{0.2}=\frac{0.2w}{0.2}\\ w=275\end{array}$

Conclusion:

The whole is $275$ .