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: if the wheel is 14 cm then the number of revolutions to cover a distance of 3520 cm is ?
Options: a ) 22 , b ) 28 , c ) 17 , d ) 12 , e ) 40
[A]: e

[Q]: Problem: a train is 360 meter long is running at a speed of 30 km / hour . in what time will it pass a bridge of 140 meter length ?
Options: a ) 87 , b ) 69 , c ) 60 , d ) 72 , e ) 21
[A]: c

[Q]: Problem: lamp a flashes every 6 seconds , lamp b flashes every 8 seconds , lamp c flashes every 10 seconds . at a certain instant of time all 3 lamps flash simultaneously . during the period of 6 minutes after that how many times will exactly two lamps flash ? ( please include any flash of exactly two lights which occurs at the 6 minute mark . )
Options: a ) 24 , b ) 25 , c ) 26 , d ) 27 , e ) 28
[A]:
d