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: if two girls starting from same point , walking in the opposite directions with 7 km / hr and 3 km / hr as average speeds respectively . then the distance between them after 12 hours is ?
Options: a ) 120 , b ) 121 , c ) 122 , d ) 123 , e ) 124
[EX A]: a

[EX Q]: Problem: a train running at a speed of 60 kmph crosses a pole in 18 seconds . what is the length of the train ?
Options: a ) 120 m , b ) 300 m , c ) 190 m , d ) 150 m , e ) 160 m
[EX A]: b

[EX Q]: Problem: if the speed of a man is 51 km per hour , then what is the distance traveled by him in 30 seconds ?
Options: a ) 275 m , b ) 360 m , c ) 375 m , d ) 425 m , e ) 440 m
[EX A]:
d