If a family of 9 persons spend Rs. 4800 in 8 months, how much will be spent by a family of 24 persons in 16 months?

If a family of 9 persons spend Rs. 4800 in 8 months, how much will be spent by a family of 24 persons in 16 months?

Explanation

Monthly expenditure for the family of 9: Rs. 4800 ÷ 8 = Rs. 600

Monthly expenditure per person: Rs. 600 ÷ 9 = Rs. 66.67

Total expenditure for 24 persons in 16 months: Rs. 66.67 × 24 × 16 = Rs. 25600