28 views

A milkman makes $20 \%$ profit by selling milk mixed with water at $\text{Rs. 9}$ per litre. If the cost price of $1$ litre pure milk is $\text{Rs. 10,}$ then the ratio of the milk and water in the said mixture is -

1. $3: 1$
2. $4: 1$
3. $3: 2$
4. $4: 3$

1
41 views