Question

8649 students were sitting in a lecture room in such a manner that there were as many students in the row as there were rows in the lecture room. how many students were there in each row of the lecture room

Answer 1

Underrrot it and the answer will be 93

Answer 2

root of 8649= 93 thus 
the no. of students in each row is 93
and the no. of rows are 93


 no. of students in a row=x
 no. of rows=y

according to question x=y

thus x × x = 8649
           x= 93