SOLUTION: 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 flash together at 8 pm, at what time will they fl

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Question 642599: 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 flash together at 8 pm, at what time will they flash together again?
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
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 flash together at 8 pm, at what time will they flash together again?
**
1/2+1/3.5+1/4
LCD:28
Time they will flash together again: 8:28 pm