Task: Question Answering
Input (English): Problem: a milk man has 20 liters of milk . if he mixes 5 liters of water , which is freely available , in 20 liters of pure milk . if the cost of pure milk is rs . 18 per liter , then the profit of the milkman , when he sells all the mixture at cost price is : 
Options: a ) 22 , b ) 25 , c ) 27 , d ) 29 , e ) 11
Output (English): b