A, B and C start at the same time in the same direction to run around a circular stadium. A completes a round in 252 seconds, B in 308 seconds and C in 198 seconds, all starting at the same point. After what time will they again at the starting point ?
  • 136 minutes 22 seconds
  • 246 minutes 22 seconds
  • 336 minutes 12 seconds
  • 446 minutes 12 seconds
Answer:- 1
Explanation:-

Solution:
LCM of 252, 308 and 198 = 2772.
Hence, they all will be again at the starting point after 2772 seconds.
or 46 minutes 12 seconds.

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