Asked by Emma
One light flashes every 2 minutes and another light flashes every 3.5 minutes. Suppose both lights flash together at noon. What is the first time after 1 PM that both lights will flash together ?
Answers
Answered by
Steve
every 14 minutes, the lights are in synch. 14*5 = 70 is the lowest multiple of 14 greater than 60.
So, at 1:10 pm they are again together.
So, at 1:10 pm they are again together.
Answered by
Ajay
isnt it every 14 minutes meaning at 1:14pm not 1:10pm. Because
2,4,6,8,10,12,14
3.5, 7, 10.5, 14
so they will meet again in every 14 minutes
2,4,6,8,10,12,14
3.5, 7, 10.5, 14
so they will meet again in every 14 minutes
Answered by
Steve
no, because they started in synch at 12:00. 70 minutes later it's 1:10.
Answered by
Stever
Yup
Answered by
sanja
no cos u stupid
Answered by
Ron
Steve and stever, u guys r really dumb.
Answered by
...
Shut up
Answered by
Minnu
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Winton
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Winton
Answered by
😊
I didn't understand it
Answered by
Lily
1:10 PM
Because the lowest common muliple of 3.5 and 2 is 14. So the largest muliple larger than 60 (1 hour) would be 70. So 12:00 plus 70 mins would be 1:10 PM
Because the lowest common muliple of 3.5 and 2 is 14. So the largest muliple larger than 60 (1 hour) would be 70. So 12:00 plus 70 mins would be 1:10 PM
Answered by
Belle
It makes sense
Answered by
Bot
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