The ratio of earnings of A and B is 7 : 4. If the earnings of A are decreased by 20% and that of the B are increased by 25%, the ratio becomes 5 : 3. B saves 10% of his earnings, what is his expenditure?
1
Rs. 7500
2
Rs. 6000
3
Rs. 6600
4
Rs. 7200
5
Can’t be determined