Question

a milkman professes to sell milk at the cost price but gives only 900ml in place of 1 litre find his gain or loss persent

Answer 1

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Answer 2

Answer:

Answer is 16.6%

Sol:

Let CP of 1 lit milk = 1rs

SP of 1 lit of mixture = 1rs

Gain is 20%

CP of 1 lit of mixture = 100/120*1= 5/6

Ratio of milk and water is

5/6–0:1–5/6 = 5/6:1/6

%age of water in mix = 1/6*100 = 16.6%

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