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Wordy LCM & HCF. There are three 50m swimming lanes. Those in lane A set off every 2 minutes, lane B every 3 minutes and lane C every 5 minutes. If they all set off at 8pm, …

Wordy LCM & HCF. There are three 50m swimming lanes. Those in lane A set off every 2 minutes, lane B every 3 minutes and lane C every 5 minutes. If they all set off at 8pm, …
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4 votes
Wordy LCM & HCF. There are three 50m swimming lanes. Those in lane A set

off every 2 minutes, lane B every 3 minutes and lane C every 5 minutes. If
they all set off at 8pm, when will they all set off together again?

User Peter Kota
by
8.1k points

1 Answer

3 votes
in 30 minutes
you multiply the three lane times together and that is the answer
User Oscar Ivan
by
7.4k points
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