5 kg of Rs.18 per kg wheat is mixed with 2 kg of another type of wheat to get a mixture costing Rs.20 per kg. Find the price (per kg) of the costlier wheat.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Rs.25.
Given:
Amount of 1st type of wheat = 5 kg
Cost of 1st type of wheat = Rs. 18/kg
Amount of 2nd type of wheat = 2 kg
Cost of mixture = Rs. 20/kg
Explanation:
Let the cost of the 2nd type of wheat be Rs. x/kg
Applying the concept of mixture and alligation -
⇒ (x - 20)/2 = 5/2
⇒ x = Rs. 25/kg