F1 race has started and there are only 2 racers on the track namely A and B.
A's engine has a problem of stopping for every 20sec.
( engine can stop or gain max.speed within no time.)
A and B maintain uniform speed of 40km/hr and 30km/hr.
If they start the race at 10:00AM and the track is of length 200km, who will win the race and at what time will the winner cross the finishing line??