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a light house 1 flashes its light every 15 mins.A light house 2 flashes its light every 18 if the two lighthouse flash together at 1 am what time will they flash together next?
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16 votes
a light house 1 flashes its light every 15 mins.A light house 2 flashes its light every 18 if the two lighthouse flash together at 1 am what time will they flash together next?

User Justinrixx
by
5.1k points

1 Answer

10 votes

Answer:

2:30 am

Explanation:

The lcm of 15 and 18 is 90, so add 90 min to 1 am

User Alisettar Huseynli
by
5.5k points
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