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'.

[EX Q]: Problem: a train 120 m long running at 60 kmph crosses a platform in 20 sec . what is the length of the platform ? 
Options: a ) 213 , b ) 298 , c ) 350 , d ) 726 , e ) 267
[EX A]: a

[EX Q]: Problem: a train 441 m long can cross an electric pole in 21 sec and then find the speed of the train ? 
Options: a ) 88 kmph , b ) 89 kmph , c ) 76 kmph , d ) 16 kmph , e ) 18 kmph
[EX A]: c

[EX Q]: Problem: a train 450 m long running at 108 kmph crosses a platform in 25 sec . what is the length of the platform ? 
Options: a ) 271 , b ) 266 , c ) 350 , d ) 277 , e ) 300
[EX A]:
e