Question

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.
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Answer 1

Here there are 500 students

Let no. of rows = no. of coloums=x

Total students standing in rows will be x^2

Nearest possible perfect square is 484.Hence 16 left out of this arrangement

Answer 2

answer :

number of students = 500

.’. no.of rows needed to be equal to number of columns = 500/2 ( you can choose any number that is divisible by 500

= 250

hence,

250 rows will be formed with equal number of columns

no children would be left out.

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