[PPSC Veterinary Officer 2022]

23. Philip, Tom and Brad start jogging around a circular field and complete a single round in 18, 22 and 30 seconds respectively. In how much time, will they meet again at the starting point?

1. 3 min 15 sec

2. 21 min

3. 16 min 30 sec

4. 12 min

Correct Answer :

16 min 30 sec