Multiple choice

Amir went grocery shopping and bought two different kinds of fruits. The cost of first fruit was Rs. 22 per kg and the cost of second fruit was Rs. 28 per kg. The quantities of first fruit and second fruit bought were in the ratio of 3 : 4. What was the average cost price (in Rs.) per kg of both the fruits?

  1. Rs. 23.52 per kg

  2. Rs. 24.46 per kg

  3. Rs. 24.96 per kg

  4. Rs. 25.43 per kg

  5. Rs. 26.52 per kg
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The average cost is the total cost divided by the total quantity. With a ratio of 3:4, let the quantities be 3kg and 4kg. Total cost = (3 * 22) + (4 * 28) = 66 + 112 = 178. Total quantity = 3 + 4 = 7. Average = 178 / 7 = 25.4285, which rounds to 25.43.

AI explanation

Using the weighted average method, assume the quantities of the first and second fruits bought are 3 kg and 4 kg, respectively. The total cost for the first fruit is 3 * 22 = Rs. 66, and the total cost for the second fruit is 4 * 28 = Rs. 112. The combined cost for 7 kg of fruit is 66 + 112 = Rs. 178. The average cost price per kg is 178 / 7 = Rs. 25.43 per kg.

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