Problem Solving Skills for Mathcounts Competitions

Mathcounts => Mathcounts => : CuteBird January 07, 2011, 09:16:01 AM

: Is there a quick way to find the number of ways to make $1.75?
: CuteBird January 07, 2011, 09:16:01 AM

Hello,

Is there a quick way to find the number of ways to make $1.75 using unlimited number of coins?

7 Quaters, or 175 pennies, and there are many ways in between.

Thank you!

: Re: Is there a quick way to find the number of ways to make $1.75?
: yongcheng3315 January 07, 2011, 09:26:12 AM

: CuteBird  January 07, 2011, 09:16:01 AM

Hello,

Is there a quick way to find the number of ways to make $1.75 using unlimited number of coins?

7 Quaters, or 175 pennies, and there are many ways in between.

Thank you!

Yes there is a fast way for solving this kind of problems. See chapter 8 of the book "Twenty More Problem Solving Skills for Mathcounts Competitions".

: Re: Is there a quick way to find the number of ways to make $1.75?
: CuteBird January 11, 2011, 11:04:37 AM

Thank you very much! I just checked, I think you meant chapter 6.