Chapter 11.10, Problem 3P

To determine

To find: The required number.

Answer to Problem 3P

The required number is $72$ .

Explanation of Solution

Given:

The square root of one eighth of the number is $3$ .

Calculation:

Consider the number is $x$ .

Then, the square root of one eighth of the number is $3$ .

  $\begin{array}{l}\sqrt{\frac{x}{8}}=3\\ \frac{x}{8}=3^2\\ \frac{x}{8}=9\\ x=72\end{array}$