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A B and C start at the same time in the...

This question belongs to Arithmetic Ability Number System
Number System
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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 ?

Answer & Solution
Correct Answer: Option D
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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