A dishonest milk man professes to sell milk at some cost price. But he mixes it with water and thereby gains 40%. What is the percentage of water in the mixture?8%28(4/7)%40%40 (4/7)%None
Question
A dishonest milk man professes to sell milk at some cost price. But he mixes it with water and thereby gains 40%. What is the percentage of water in the mixture?8%28(4/7)%40%40 (4/7)%None
Solution 1
The milkman gains 40% by mixing water in the milk. This means that 60% of the cost price is the cost of milk and the remaining 40% is his profit.
Since he gets this profit by adding water, we can say that the water constitutes 40% of the mixture.
So, the percentage of water in the mixture is 40%.
Solution 2
The milkman gains 40% profit by mixing water in the milk. This means that 60% of the mixture is milk (since 100% - 40% = 60%). Therefore, the percentage of water in the mixture is 40%.
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