The cost of 80% concentrated milk is rs. 16/litre. The cost of 60% concentrated milk is rs. 13/litre. If a person purchases 80% concentrated milk and mixes water (which is free of cost) in it to make it 60% concentrated milk, then by selling this milk, how much profit can he make?
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The profit made by the person is 33.3%
Step-by-step explanation:
Let's denote 80% concentrated milk by A and 60% concentrated milk by B
Suppose total volume of milk is 100 litre, it contains 80 litres of milk and 20 litres of water and it was purchased at the price of 1600 Rs.
Now for 60% concentrated it will be
60 litres of milk and 40 litres of water, and the cost is 1300 Rs -
Therefore Milk B is equivalent to
Total volume of milk = 80 litres + 53 1/3 litres = 133 1/3 litre
= 400/3 litre purchased at 6400/3
Profit = 6400/3 - 1600 = 1600/3 = 533.3 rupees ( 33.3 % profit)
Thus the profit made by the person is 33.3%
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