Question

the light in a lighthouse flashes every 20 seconds. How many times will it flash in one hour?​

Answer 1

Answer:

Actually, despite the other answers, there's actually no way to answer this question with any certainty. If the two lighthouses INITIALLY flash at the same time, yes, they will flash together again after 60 seconds; however, if they flash any time OTHER than 20, 30, 40, or 60 seconds apart, they will never flash together.

Step-by-step explanation:

I hope it's helps

Answer 2

Answer:

I think this answer are impossible for me