The monthly income of a man is Rs 90000. 20% of it is paid as income tax and 75% of the remaining is spent on rent, food, clothing, etc. Total money left with him at the end of the month is Rs
Monthly income = Rs 90000
Income tax = 20100×90000 = Rs 18000
Remaining amount = Rs 90000 - Rs 18000 = Rs 72000
75% of the remaining = 75100×72000 = Rs 54000
∴ The total amount left with him at the end of the month = Rs 72000 - Rs 54000 = Rs 18000