A mixture of 100 L contains kerosene and turpentine oil in the ratio 3 : 2. What is the minimum quantity of kerosene in litres (whole number) that should be mixed in the mixture so that the resulting mixture has 20% of kerosene?

Question

Accepted Answer

Not possible. Initial mixture has kerosene = 60 L and turpentine = 40 L out of 100 L, so kerosene is already 60% of the mixture. Adding more kerosene will only INCREASE the percentage of kerosene above 60%, never decrease it to 20%. Therefore it is not possible.

A mixture of 100 L contains kerosene and turpentine oil in the ratio 3 : 2. What is the minimum quantity of kerosene in litres (whole number) that should be mixed in the mixture so that the resulting mixture has 20% of kerosene?

Explanation

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