Out of his total income, Mr. Kapur spends 20% on house rent

Out of his total income, Mr. Kapur spends 20% on house rent and 70% of the rest on house-hold expenses. If he saves ₹ 1,800, what is his total income (in rupees)?

Total percentage of expenditure = ₹		20 +	80 × 70			% = 76%
			100

If total income be ₹ p, then

p ×	24	= 1800
	100

⇒ p =	1800 × 100	= ₹ 7500
	24

His monthly income =	1800	× 100
	100 - (20 + 56)

His monthly income =	180000
	100 - 76

His monthly income =	180000	= ₹ 7500
	24