- A2:5
- B1:4
- C1:6
- D1:5
Step-by-Step Solution
The free water gives the profit, so water : milk = gain% : 100 = 20 : 100 = 1 : 5.
Answer: D) 1:5
In what ratio must water be mixed with milk so that on selling the mixture at the cost price of milk, a gain of 20% is made?
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