Oh sorry MElody i hadnt read your answer with much concentration!ive got the answer!
Let the no. of students be = x
let the amount paid by each student be = x
x * x = x^2 = 2401
√2401
(after taking the LCM of 2401) √2401=√ 7*7*7*7
√2401 = 7*7
√2401= 49^2 ANSWER
Therefore , there are 49 students in the class who paid Rs49 each!
Am i correct Melody!
I just checked thats how my teacher has made us do!but i didnt copy from that!i used my own brain!
+11912 
