A milkman buys milk at Rs 24 per litre. He adds 1/5 of water to it and sells the mixture at Rs 32 per litre. What will be his gain (in %)?
Let he buy 5 litres
CP = 5*24 = 120
he add 1/5th quantity = 1 litre of water
now total quantity = 6 litres
he sold at 32 per litre
SP = 6*32 = 192
gain = 72
%gain = $$\frac{72}{120} \times 100 = 60$$%
so the answer is option D.
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