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October 20, 2014

October 20, 2014

Posted by **Kenny** on Sunday, February 3, 2008 at 7:46pm.

- Math -
**Damon**, Sunday, February 3, 2008 at 9:09pmFirst the times in seconds.

Then least common multiple

45 seconds, 120 seconds, 75 seconds

factor them all

3 *3 * 5

2 * 2 * 2 * 3 * 5

3 * 5 * 5

so we need

2 * 2 * 2 * 3 * 5 * 5

thet is

8*3*25

=600 seconds

= 10 minutes

- Math -
**Anonymous**, Thursday, May 24, 2012 at 10:26pm8:45

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