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A light flashes every 2 minutes, a second light flashes every 3.5 minutes, and a third light flashes every 4 minutes. If all three lights flash together at 8 PM, what is the next time of the day they will flash together?

Answer :

You must determine the least common multiple of the three in order to respond to this. 8:28 pm will be the moment when all three lights flash simultaneously next.

Wat is the LCM of 2, 3.5, and 4 in whole numbers?

Work with 3.5 now:

3.5 * 1 Equals 3.5 (no, 2 and 4 don't split into 3.5 in an equal manner)

3.5 * 2 = 7 (no, same excuse)

3.5 * 3 = 10.5 (nope) (nope)

3.5 * 4 = 14 (nope) (nope)

3.5 * 5 = 17.5 (nope) (nope)

3.5 * 6 = 21 (nope) (nope)

3.5 * 7 = 24.5 (nope) (nope)

3.5 * 8 = 28 (yes, as 2 and 4 are factors of 28) (yep, since 2 and 4 are factors of 28)

Therefore, 8:28 pm will be the moment when all three lights flash simultaneously next.

To learn more about LCM from given link

https://brainly.com/question/10749076

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