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.
- ((a))
7 : 9
- ((b))
7 : 11
- ((c))
11 : 9
- ((d))
9 : 11
Show Answer
7 : 9





















