Task: Question Answering
Input (English): Problem: the ratio of petrol and kerosene in the container is 3 : 2 when 10 liters of the mixture is taken out and is replaced by the kerosene , the ratio become 2 : 3 . then total quantity of the mixture in the container is : 
Options: a ) 33 , b ) 30 , c ) 38 , d ) 37 , e ) 27
Output (English): b