Question

during a mass drill exercise 6250 students of different schools are arranged in a row such that the number of students in each row is equal to the number of rows in doing so the instructor finds out that 9 children are left out find the number of children in each row of the square

Answer 1

Let no of rows=a

Then no of students in each row=a

Students left=9

So (a×a)+9=6250

a^2=6241

a=√6241=79

So,a=79

Answer 2

Let the no. of students be x .

A/Q,  x² = 6250- 9

⇒ x² = √6241

∴ x = 79

ok

thanks