Q: In this task, you need to answer the given multiple-choice question on the physics. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.
Problem: how many seconds will a train 100 meters long take to cross a bridge 180 meters long if the speed of the train is 36 kmph ? 
Options: a ) 26 , b ) 72 , c ) 28 , d ) 82 , e ) 27
A:
c