Chapter 6.2, Problem 19GP

To determine

Find the number by doing estimation.

Answer to Problem 19GP

The number is $32$ .

Explanation of Solution

Given:

It is given in the question that the expression is $37\frac{1}{2}\%of81$ .

Concept Used:

In this, use the concept of doing estimation by rounding off the number to simpler numerals.

Calculation:

Here, the expression is $37\frac{1}{2}\%of81$.

In this, it can be say that $37\frac{1}{2}\%$ is close to $40\%$ and $81$ is close to $80$ ,therefore, $40\%of80$ is $32$ .

Conclusion:

The number is $32$ .