The monthly income of a man is ₹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 ₹
Monthly income = ₹90000
Income tax = 20100×90000 = ₹18000
Remaining amount = ₹90000 - ₹18000 = ₹72000
75% of the remaining = 75100×72000 = ₹54000
∴ The total amount left with him at the end of the month = ₹72000 - ₹54000 = ₹18000