SOLUTION: George and Martha like to practice their swimming together, but their schedules make this difficult to do. Today, they swam together. George swims every five days and Martha swims

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Question 630035: George and Martha like to practice their swimming together, but their schedules make this difficult to do. Today, they swam together. George swims every five days and Martha swims every three days. How many days until they swim together again?

Found 3 solutions by stanbon, solver91311, 55305:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
George and Martha like to practice their swimming together, but their schedules make this difficult to do. Today, they swam together. George swims every five days and Martha swims every three days. How many days until they swim together again?
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The least common multiple: 15 days
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Cheers,
Stan H.
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Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


3 times 5

John

My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism

Answer by 55305(86) About Me  (Show Source):
You can put this solution on YOUR website!
Lets pretend that today is the 7/1. Lets make a table for the next few times George and Martha swam.
George| Martha|
7/6 |7/4 |
7/11|7/7 |
7/16|7/10|
7/21|7/13|
7/26|7/16|
And we'll stop there. If you look at the table, then you can see that 7/16 is on both columns. That means it will take 15 days for them to swim together again.