A man got a 10% increase in his salary. If his new salary is Rs.154000, find his original salary.

Let the original salary of the man be Rs.x.
He gets a 10% increase in his salary.
So, the increase in his salary is 10% of x = (10/100) * x = x/10
His new salary is x + x/10 = 11x/10
Given that his new salary is Rs.154000.
Therefore, 11x/10 = 154000
x = (154000 * 10)/11
x = 140000
Therefore, his original salary was Rs.140000.