Question

Question 9.
There are 500 children in a school. For a P.T. drill, they have to stand in such a manner that the number of rows is equal to number of columns. How many children would be left out in this arrangement?

Answer 1

Here, Number of children = 500

$\begin{array}{cc}& 22\\ 2& \overline{5}\overline{00}\\ & -4\\ 42& 100\\ & -84\\ & 16\end{array}$

By getting the square root of this number, we get,

In each row, the number of children is 22.

And left out children are 16.