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More ways to get Braingle...

A Money Matter

Math brain teasers require computations to solve.

 

Puzzle ID:#265
Fun:*** (2.42)
Difficulty:** (2.09)
Category:Math
Submitted By:Mr. GAus*****
Corrected By:MattM462

 

 

 



What is the fewest number of American coins you need to have the exact change for every situation, in one cent increments, between one cent and one dollar?

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Comments

cnmne*us*
Feb 02, 2004

You would need 10 coins. In order to make change for a nickel, you would need 5 pennies.
thebuddhawithin*
Jul 02, 2004

well there are not too many half dollars in circulation so it would be ideal to have 3 quaters, 2 dimes, 1 nichol, and 4 pennies (10 coins). And no, you do not need to have 5 pennies, the point is not to make change, it is that you want to have the least amount of coins that will give you every combination up to a dollar
AtropusAnz**
Feb 14, 2005

It might be nice to specify the currency of the coins you are talking about... we don't have quarter dollars here in new Zealand.
shadowmancer626*
Jun 23, 2005

you took the only teaser i knew(and could possibly ever submit to this site)!!!!!!!
vikingboyAus**
Aug 20, 2005

zero, bring a charge card
horse_luverAca*
Dec 11, 2005

I got an answer similar to thebuddawithin, of 4 pennies, 2 nickels, 1 dime, and 4 quarters. Didn't include 1/2 dollars.
teen_wizAca*
Feb 15, 2006

I don't think half-dollars exist anymore in Canada. Good try though!
stil*us*
Apr 23, 2006

If we choose the the arguments of
thebuddhawithin over those of cnmne, we can handle a one dollar "situation" with a dollar bill and ZERO coins! Then we could substitute 2 nickels and 1 dime for the nickel and the 2 dimes and, thereby, also minimize the total value of the coins needed.
SOCCER_CHICK*ca*
Sep 25, 2006

there was nothing wrong with this teaser...half dollars ARE still around and (s)he says american dollars AND why would you need change for a nickel....
ChristheGreat*us*
Nov 12, 2006

Huh.
ChRmD1Aus*
Apr 28, 2007

TeenWiz, it said AMERICAN coins... nothing to do with Canada
s_o_sAen*
May 15, 2007

Good teaser, but I agree a hint explaining what coins they have in America would have made it easier for people who don't know.



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