There is a string of red and blue lights strung around a window. The red lights blink every 3 seconds , and the blue lights blink every 5 seconds. How many times will they blink at the same time in one minute??

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Well you could count by threes and Fives and see your answer, 3,6,9,12,15, and so on and fives 5,10,15 and you have one match. 18, 21, 24, 27, 30 and 20, 25, 30. Two matches. They will blink at the same time about six times.

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topeadeniran2 topeadeniran2 · Answer 2 · 2021-11-03T13:03:29+01:00

They'll blink for 4 times together.

Based on the information given, we've find the factors of both 3 and 5. This will be:

Factors of 3 = 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57 and 60

Factors of 5 = 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, and 60.

Common factors = 15, 30, 45 and 60

Therefore, based on the above they'll for 4 times together.

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There is a string of red and blue lights strung around a window. The red lights blink every 3 seconds , and the blue lights blink every 5 seconds. How many times will they blink at the same time in one minute?? Please show work

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There is a string of red and blue lights strung around a window. The red lights blink every 3 seconds , and the blue lights blink every 5 seconds. How many times will they blink at the same time in one minute??

Please show work