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Question 9
Two types of rice costing Rs.38 per kg and Rs.42 per kg are mixed in equal quantities and sold at Rs.45 per kg. Find the gain per cent.
Solution
Cost of 1 kg rice1 = Rs. 38 per kg
Cost of 1 kg rice2 = Rs. 42 per kg
Total quantity of rice = 1 + 1 = 2
Cost of 2 kg rice = Rs. 80
Selling price of the new mixture = Rs. 45 per kg
selling price of 2 kg rice = 2*45 = Rs. 90
profit = 90 - 80 = Rs. 10
profit = Rs. 10
profit% = $$\frac{profit}{cp}100$$
profit% =$$\frac{profit}{cp}100$$
= 12.5 %
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