1.

The price of a variety of a commodity is Rs. 7/kg and that of another is Rs. 12/kg. Find the ratio in which two varieties should be mixed so that the price of the mixture is Rs. 10/kg.

A. 2 : 5
B. 3 : 4
C. 2 : 3
D. 4 : 5
Answer» D. 4 : 5


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