30 kg rice costing Rs. 50 per kg is mixed with 20 kg of rice costing Rs. 60 per kg. What is the average cost of the mixture per kg?
Show answer & explanation
Correct answer: A
Explanation
Correct Answer is option 1 i.e. Rs. 54
|
Understanding |
Application |
Calculation |
|
30 kg of rice costing Rs. 50 per kg |
So, Cost = Per kg cost × Weight = Rs. 1500 |
⇒ 30 × 50 ⇒ 1500 |
|
20 kg of rice costing Rs. 60 per kg |
So, Cost = Per kg cost × Weight = Rs. 1200 |
⇒ 20 × 60 ⇒ 1200 |
|
Total cost = 1500 + 1200 = Rs. 2700 |
Hence, Average cost of the mixture per kg = Rs. 54 |
⇒ 2700/(30 + 20) ⇒ 2700/50 ⇒ 54 |