Question
Download Solution PDFIn a mixture of two types of oils A and B, the ratio of A : B is 3 :2. If the cost of oil A is Rs. 60 per litre and that of oil B is Rs. 120 per litre, then find the cost per litre of the resulting mixture.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven
The ratio of A: B is 3 : 2.
The cost of oil A = Rs. 60 per litre
The cost of oil B = Rs. 120 per litre
Formula used
Total value = Quantity × price
Solution
Let the two types of oil be 3x and 2x.
Total cost of the mixture = (3x × 60) + (2x × 120)
⇒ 180x + 240x = 420x
The cost per litre of the resulting mixture:
⇒ 420x/5x
⇒ 84.
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