If a shopkeeper mixes two types of pulses worth Rs.80 per kg and Rs.95 per kg, in the ratio 2:3, then what is the average cost of the mixture?

Correct option is C

Given:

Cost of first type of pulse = Rs. 80 per kg
Cost of second type of pulse = Rs. 95 per kg
Mixing ratio = 2 : 3

Formula Used:
Average cost =  $$\frac{(a \times x) + (b \times y)}{a + b}$$​​
where

a, b = quantities (ratio parts)

x, y = respective prices

Solution:
Average cost = $$\frac{(2 \times 80) + (3 \times 95)}{2 + 3}$$​​

​$$= \frac{160 + 285}{5}$$​​

​$$= \frac{445}{5}$$​​

= 89 per kg