Question

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 1

Answer:

C. 2 : 3

Solution:

Given:

The price of two varieties of a commodity is Rs.7/kg and Rs.12/kg

Final price of the mixture = Rs.10/kg

Concept used:

Alligation method

Calculation:

We can use the given data in the allegation method as

∴ The two varieties should be mixed in the ratio 2 ∶ 3