Q156. Three runners take 12, 15, and 20 seconds respectively to complete one lap of a track. If they start at the same time, when will they next meet at the starting point?Mathematics — Arithmetic — Question 156 of 449A. 120 secondsB. 60 secondsC. 180 secondsD. 30 secondsPractice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →