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

Answer 1

2 ) 500 ( 22
4 
=========== 
42) 100 
84 
============ 
16 







500=22²+16

so Number of rows=22

columns=22. 


number of students left =16

Answer 2

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