Task: Question Answering
Input (English): Problem: two trains of length 120 meter and 150 meter crosses a stationary man in 10 and 15 seconds respectively . in what time they will cross each other when they are moving in same direction . 
Options: a ) 120 sec , b ) 125 sec , c ) 135 sec , d ) 140 sec , e ) none of these
Output (English): c