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Mathematics, 29.11.2019 00:31 Mlmyers81
Two lighthouses can be seen from the top of a hill. the frist flashes once every 6 seconds and the otherflashes once every 15 seconds.
if they flash simultaneously, how long is it until they flash again at the same time?
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Two lighthouses can be seen from the top of a hill. the frist flashes once every 6 seconds and the o...
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