Question

A dishonest shopkeeper sells milk at 25% gain and also he adds some water in the ratio 5:1 in it. What is his total profit?

Answer 1

Cost = Price x Quantity = 0.33m
==> Revenue = Price x Quantity = 0.36(m + w)
==> Profit = 0.36(m+w) - 0.33m = 0.2*(0.33m)[20% of cost]
==> 0.36m + 0.36w - 0.33m = 0.066m
==> 0.036m = 0.36w
==> m/w = 0.36/0.036 = 10 
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