Two bike riders ride in opposite directions around a circular track, starting at the same time from the same point. Biker A rides at a speed of 16 kmph and biker B rides at a speed of 14 kmph. If the track has a diameter of 40 km, after how much time (in hours) will the two bikers meet? Options.
A) 8.18 hrs .
B) 6.18 hrs .
C) 4.18 hrs .
D) 1.18 hrs .
E) 7.18 hrs .

Rationale: explanation : distance to be covered = = 40 km relative speed of bikers = 16 + 14 = 30 kmph . now , = = 4.18 hrs . answer : c
Answer: C