A shopkeeper has two types of rice, one costing Rs. 60 per kg and the other costing Rs. 80 per kg. He mixes them in the ratio of 3 : 2. What is the price per kg of the resulting mixture?

Correct option is D

Given:

Cost of first rice = Rs. 60/kg

Cost of second rice = Rs. 80/kg

Mixing ratio = 3 : 2

Solution:

Mixture Price = $$\frac{(60 \times 3) + (80 \times 2)}{3 + 2}$$​​

​$$= \frac{180 + 160}{5}$$​​

​$$= \frac{340}{5}$$​​

= 68

Thus, The price per kg of the resulting mixture is Rs. 68