Task: Question Answering
Input (English): Problem: a mixture contains milk and water in the ratio 3 : 2 . on adding 10 litters of water , the ratio of milk to water becomes 2 : 3 . total quantity of milk & water before adding water to it ? 
Options: a ) 10 , b ) 30 , c ) 50 , d ) 20 , e ) 30
Output (English): d