Asked by SEHS

three different lights flash every 5 seconds, 8 seconds and 12 seconds respectively. if they start at the same time how long will it take for them to flash at the same time again?
Answered by Damon
common multiple
5
2*2*2
2*2*3
need
5 2 2 2 3
120
Answered by Anonymous
three different lights flash every 8 seconds every 5 seconds and every 12 seconds
Answered by Ramzan
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