Question

a man got 10% increase his salary if he is new salary is 1,54,000 , find his new salary

Answer 1

Let his previous salary be x,
Then,
x + 10x/100 = 154000
10x + 1x = 1540000
11x = 1540000
Therefore,
x = 1,40,000
i.e. his previous salary was 1,40,000/-

Answer 2

let original salary be rupees 100
therefore salary = 100 + 10 = 110
now new salary is increased by 10%

when new salary is 110 original salary is 100
when new salary is 154000 then original salary =100÷110×154000
=140000