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Ravee22 Ravee22
  • 28-09-2015
  • Mathematics
Answered

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?

Verified Answer :

funisalwayshere
funisalwayshere funisalwayshere
  • 28-09-2015

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

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