Question

the salary of a person was increased by 15% if his salary now is 9936 what was his initial salary?

Answer 1

x+3x/20=9936

(20x+3x)/20=9936

23x=9936*20

23x=198720

x=198720/23

x=8640  

Rs. 8640 was his initial salary.

Answer 2

present salary = 9936
let his initial salary = x
A.T.Q
15%of x+x=9936
15/100×x+x=9936
115x/100=9936
115x=9936×100
x=993600/115
x=8640
HOPE IT HELPS