Question

A milkman buys milk at Rs. 15 per litre. He mixed the water with it and sell the mixture at cost price. In what proportion is water mixed with milk if his profits were 25/4%.

1. 1 : 8
2. 1 : 4
3. 1 : 16
4. 2: 17
5. None of these

Answer 1

Correct Answer - Option 3 : 1 : 16

Given 

Milkman buys milk = Rs 15/litre

Calculation 

25/4% = 1/16

In above expression , profit = 1 and cost price = 16

So, milk = 16 and water = 1

∴ Ratio of water to milk = 1 : 16