If a shopkeeper mixes two types of pulses worth Rs.80 per kg and Rs.95 per kg, in a ratio 2 : 3, then what is the average cost of the mixture?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. Rs.89 per kg
Given:
The cost of the first variety of pulse = Rs. 80
The cost of the second variety of pulse = Rs. 95
Explanation:
Let the cost of a mixed variety of pulses be x.
Using the rule of allegation -
⇒ (95 - x) : (x - 80) = 2 : 3
⇒ 285 - 3x = 2x - 160
⇒ 5x = 445
⇒ x = 89
Cost of mixed variety of pulse = Rs. 89