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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 ?
36 minutes 22 seconds
46 minutes 22 seconds
36 minutes 12 seconds
46 minutes 12 seconds
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
Hence, option 4 is the correct answer.
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