The ratio of per kg market price of rice to that of wheat flour is 7 : 9 and the ratio of their quantities consumed by a family is 9 : 11. Find the ratio of the family’s expenditure on rice to that on wheat flour.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e 7 : 11.
Price ratio (rice : wheat) = 7 : 9
Quantity ratio (rice : wheat) = 9 : 11
Expenditure = Price × Quantity
So,
Expenditure on rice = 7 × 9 = 63
Expenditure on wheat = 9 × 11 = 99
Ratio of expenditure (rice : wheat) = 63 : 99 = 7 : 11