The monthly income of a person was Rs. 13500/- and his monthly expenditure was Rs. 9000/-. Next year, his income increased by 14% and his expenditure by 7%. Find the percentage increase in his savings.

To simplify the calculation, you can use the ratio of Income : Expenditure : Savings. Initial Ratio: 13,500 : 9,000 : 4,500 simplified is 3 : 2 : 1 .Let Income be 300, Expenditure 200, Savings 100.New Income: 300 + 14\% = 342 New Expenditure: 200 + 7\% = 214 New Savings: 342 - 214 = 128 Increase from 100 to 128 = 28%.