Task: Question Answering
Input (English): Problem: a boat covers a certain distance downstream in 1 hour , while it comes back in 1.30 hours . if the speed of the stream be 3 kmph , what is the speed of the boat in still water ? 
Options: a ) 10 , b ) 13 , c ) 11 , d ) 08 , e ) 15
Output (English): e