Question 89

A dishonest milkman buys milk at Rs 30 per litre and adds 1/5 of water to it and sells the mixture at Rs 32 per litre. What will be his gain?

Solution

The milkman adds $$(\frac{1}{5})^{th}$$ of water, thus total mixture = $$1+\frac{1}{5} = \frac{6}{5}$$

Cost price per litre of the mixture = $$\frac{30}{\frac{6}{5}} = 30 \times \frac{5}{6} = Rs$$ $$25$$

Selling price per litre = Rs. 32

$$\therefore$$ Profit % = $$\frac{32-25}{25} \times 100$$

= $$7 \times 4 = 28\%$$

=> Ans - (C)

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