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'.

[Q]: Problem: a train , 800 meter long is running with a speed of 78 km / hr . it crosses a tunnel in 1 minute . what is the length of the tunnel ? 
Options: a ) 650 meter , b ) 555 meter , c ) 500 meter , d ) 458 meter , e ) none of these
[A]: c


[Q]: Problem: if the wheel is 14 cm then the number of revolutions to cover a distance of 968 cm is ? 
Options: a ) a ) 15 , b ) b ) 10 , c ) c ) 14 , d ) d ) 12 , e ) e ) 11
[A]: e


[Q]: Problem: a can run 4 times as fast as b and gives b a start of 60 m . how long should the race course be so that a and b might reach in the same time ? 
Options: a ) 70 m , b ) 60 m , c ) 80 m , d ) 65 m , e ) 75 m
[A]:
c