Task: Question Answering
Input (English): Problem: two trains are moving in opposite directions at 60 km / hr and 90 km / hr . their lengths are 1.10 km and 0.9 km respectively . the time taken by the slower train to cross the faster train in seconds is : 
Options: a ) 28 sec , b ) 36 sec , c ) 48 sec , d ) 52 sec , e ) 56 sec
Output (English): c