Let the original salary be x. It is given that the new salary is Rs 1,54,000.
Original salary + Increment = New salary
However, it is given that the increment is 10% of the original salary.
x + 10/100 X x = 154000
100x/100 = 15400
x = ( 154000 X 100/100 )
x = 140000
Thus , the original salary war Rs 1,40,000.