Homework Help: math

Posted by sherkyra on Monday, August 30, 2010 at 9:11pm.

a clockmacker must wind his clocks on a regular schedule. he winds some of his clock every three days and the remainder of his clocks every five days. how often does he wind all of his clocks on the same day? I need help with that problem

math - Ms. Sue, Monday, August 30, 2010 at 9:18pm
What time span do you need?

1, 4, 7, 10, 13, 16, 19, 22, 25, 28, 31

1, 6, 11, 16, 21, 26, 31

If he winds them all on day 1, he'll wind them all again on day 16 and day 31.
math - Reiny, Monday, August 30, 2010 at 9:18pm
So he winds "some" of his clocks on day
3,6,9,12,15,18,...
He winds the remainder of the clocks on day
5,10,15,20,...

mmmh?
math - sherkyra, Monday, August 30, 2010 at 9:29pm
thank you both so much. I feel positive about using this website again.
math - Ms. Sue, Monday, August 30, 2010 at 9:39pm
You're very welcome.

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