Question

Robert John and paul start to run from the same the point in the same direction around a circular track. if they take 126 seconds 154 seconds and 198 seconds to complete one round of the track when will they meet again at the starting point​

Answer 1

Answer:

well here we have to take LCM of 126, 154, and 198

which is 1386

so they will meet after 1386 sec or 23.1 min