Correct Answer - Option 1 : 34
Given:
12 kg of oil costing Rs. 30 per kg is mixed with 8 kg of oil costing Rs. 40 per kg.
Concept used:
Average = Sum of Observations/Number of Observation
In that particular question price is also mentioned with quantity,
So, Sum of Observations = Price × Quantity
Calculation:
Total cost price of 20 kg of mixed oil,
⇒ Rs. (12 × 30 + 8 × 40)
⇒ Rs. 680
Average per kg price = 680/20
⇒ Rs. 34
∴ The average per kg price of mixed oil is Rs. 34.
