# math

on a radio tower, a red light flashes every 6 seconds and a blue light flashes every 10 seconds. if both lights flash together at a certain time, how many seconds later will both lights flash together the next time

1. 👍 0
2. 👎 0
3. 👁 90
1. LCM(6,10) = 30

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2. 👎 0
posted by Steve

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