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When the market price per kg of rice and wheat be in the ratio 3 : 2 , the monthly expenses of a family towards rice and wheat are in the ratio 5 : 6 . If the market price of rice and wheat becomes in the ratio 4 : 3 , what will be the ratio of expenses towards them ? (Assume that amount of rice and wheat consumed remains unaltered .)
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- 20 : 29
- 20 : 27
- 18 : 25
- 21 : 37
Correct Option: B
Market price per kg :
Rice = Rs . 3x
Wheat = Rs . 2x
Monthly expenses :
Rice = Rs . 5y
Wheat = Rs . 6y
| Amount of rice = | kg | |
| 3x |
| Amount of wheat = | kg | |
| 2x |
New price :
Rice = Rs . 4z / kg
Wheat = Rs . 3z / kg
∴ Required ratio
| = | : | " 3z | ||
| 3x | 2x |
| = | : | ||
| 3 | 2 |
= 20 : 27
