A, B and C start at the same time in the same direction to run around a circular track. A completes a round in 252 seconds, B in 308 seconds and C in 198 seconds, all starting at the same point. When will they meet again at the starting point?

**(A)** 26 minutes 18 seconds

**(B)** 42 minutes 36 seconds

**(C)** 45 minutes

**(D)** 46 minutes 12 seconds

**Answer:** **(D)** **Explanation:** LCM of 252, 308 and 198 = 2772. Therefore, they will meet at the starting point again after 2772 seconds = 46 minutes and 12 seconds.

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