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$1

Math brain teasers require computations to solve.

 

Puzzle ID:#405
Fun:*** (2.29)
Difficulty:** (1.67)
Category:Math
Submitted By:Mr. GAus******

 

 

 



What fifty (American) coins equal exactly one dollar?

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Comments

Rado*
Nov 01, 2001

What about 45 pennies, 2 nickels, 2 dimes and a quarter?
dewtell*us
Jul 31, 2002

That also works. In general, you can substitute a quarter and 23 pennies (24 coins, 48 cents) for 6 nickels and 18 pennies (also 24 coins and 48 cents), but you can only do that once to the initial solution.
The key to this problem is to recognize that the average value has to be 2 cents per coin, so you need to group enough pennies with each larger coin to keep the average of each group at 2 cents per coin.
beetee
Aug 01, 2003

THE US MINTED A 2CENT PIECE FOR SOME YEARS 1800'S
canu*
Jul 13, 2004

Information on US 2-cent coins: www.coinfacts.com/two_cents/two_cents_by_date.html
Question_MarkAsx*
Oct 27, 2005

If this was the UK, it would be:
40 1p's, 2 10p's, 8 5p's (£1).
Question_MarkAsx*
Nov 02, 2005

Wait! Here is the UK's more sensible option. 50 2p's .
SPUTNIK2Aus*
Feb 06, 2006

good one!
AtropusAnz*
Feb 12, 2006

2p coins sound like the way to go ^_^

My country (New Zealand) got rid of 2c coins in 1989-1990.

We are about to lose 5c coins also.

Then again, most transactions here are electronic.
gorillazgirl*de*
Jul 03, 2006

that was fun!!
rrn0rrnrrnY*us*
Sep 08, 2006

I agree with Rado, but don't mind that there isn't just one answer. I enjoyed thinking it out without it giving me a headache. Thanks for a good teaser!
LeafFan4life*
Mar 04, 2007

E and Z are weid letters but when put togetherr they make ez and i dont know what ez means!! well ne way this one was easy
eighsseAus*
Sep 08, 2013

The easiest way to solve this is to make a permutation-hunting program.



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