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Break a dollar (Posted on 2004-07-14) Difficulty: 3 of 5
In the USA, there are coins of 1 cent, 5 cents, 10 cents, 25 cents, 50 cents and 1 dollar.
You can pay one dollar using either one coin (100), or two coins (50 + 50), or three (50 + 25 + 25), or four (25 + 25 + 25 + 25), etc.

What is the smallest number such that you cannot pay $1 with that many coins?

See The Solution Submitted by Federico Kereki    
Rating: 3.3333 (3 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Answer | Comment 7 of 8 |
The smallest number such that one cannot pay $1 with that many coins is 77.
  Posted by K Sengupta on 2008-03-31 15:27:24
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