Question

A man got 25% increase in his salary if his new salary 21000 orignal salary

Answer 1

let the original salary of the man be x rs.

increase in salary of man = x+25%of x

=x+25/100 * x

= x+25x/100

=100x+25x/100

=125x/100

by problem,

125x/100=21000

125x=21000*100

x= 21000*100/125

x=4200*4

x=16800

original salary =16800