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P, Q and R start at the same time in the same direction to run around a circular stadium. P completes a round in 252 seconds, Q in 308 seconds and R in 198 seconds, all starting at the same point. After what time will they next meet at the starting point again?
5Q:
P, Q and R start at the same time in the same direction to run around a circular stadium. P completes a round in 252 seconds, Q in 308 seconds and R in 198 seconds, all starting at the same point. After what time will they next meet at the starting point again?
- 142 minutes 36 secondsfalse
- 226 minutes 18 secondsfalse
- 346 minutes 12 secondstrue
- 445 minutesfalse
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