Question

There are 1000 children in a school. For a P.T. drill they have to stand in such a way
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

Answer:

31×31=961

1000-961= 39

Answer 2

Answer:

39

Step-by-step explanation:

For equal number of students in each row and column we need to find nearest perfect square to 1000 which is 961 square of 31

So, children left out will be 1000-961 =39