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 p.m what is the next time of the day they will all flash together?
8:28 pm because u have to find an even number that is divisible by 4, 2 and 3.5 and 28 is divisible by all of them so u add it to the 8:00 and u gat 8;24