The price ratio between wheat and rice is 9 : 11, whereas the household consumption ratio is 11 : 13. Calculate the ratio of expenses related to rice and wheat.
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Correct answer: D
Explanation
The correct answer is option 4 i.e. 13 : 9.
Price ratio of wheat : rice = 9 : 11
Consumption ratio of wheat : rice = 11 : 13
Expense ratio = Price × Consumption
For wheat = 9 × 11 = 99
For rice = 11 × 13 = 143
So, expense ratio of rice : wheat = 143 : 99 = 13 : 9