Posted by **Eli** on Sunday, January 29, 2012 at 4:00pm.

Every day Sally saved a penny, a dime, and a quarter. What is the least number of days required for her to save an amount equivalent to an integral number of dollars?

- Math -
**Damon**, Sunday, January 29, 2012 at 4:28pm
.36 dollars a day

100 days = 36 dollars

50 days = 18 dollars

25 days = 9 dollars

humm, no more common factors

- Math -
**Christine**, Monday, January 30, 2012 at 1:22am
25. The sum of a penny, a dime, and

a quarter is 36 cents. The number 36

factors into 2²•3². To get an integral

value in dollars, we must multiply by 5² so that the product ends in two zeroes.

Any multiple of 25 will work, but 25 is

the least of those values.

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