Question

a man earns rs 7500 , he spends 60% of his income. if his income increase by 20% and his expenditure increase by 10%, find increase in his savings

Answer 1

Income-7500
Expenditure - (60/100)*7500
4500
Saving-7500-4500
3000
Increased lncome-7500+(20/100)*7500
7500+1/5*7500
7500+1500
9000
Increased expenditure-4500+(10/100)*4500
4500+450
4950
Increased saving-9000-4950
4050
Increase in saving - 4050-3000
1050