A milkman bought 15 litres of milk and mixed 3 litres of water in it. If the price per litre of the mixture becomes Rs 22, what is cost price of the milk per litre?
The correct option is E Rs. 26.40
Let cost price of milk be Rs. x per kg.
Price of 15kg of milk = Rs. 15x
Now, mix 3kg of water, therefore quantity of mixture=(15+3)kg=18kg
So, the price of the mixture is Rs. 22 per kg.