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12 kg of rice costing 30 per kg is mixed with 8 kg of rice costing 40 per kg.The average per kg price of mixed rice is
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- ₹ 38
- ₹ 37
- ₹ 35
- ₹ 34
- ₹ 38
Correct Option: D
Total cost price of 20kg of mixed rice = (12 × 30 + 8 × 40) = ₹ 680
∴ Average per kg price = | = ₹ 34 | |
20 |
Second method to find the required average ,
y1 = 12, A1 = 30
y2 = 8, A2 = 40
∴ Average = | |
y1 + y2 |
Average = | |
12 + 8 |
Average = | |
20 |
Average = | = ₹ 34 | |
20 |