perplexus.info :: General : Flat Out

Flat Out (Posted on 2003-12-17)

What is the minimum number of pennies that can be placed upon a table so that each penny touches three, and only three, others?

(All the pennies must lie flat on the table.)

See The Solution Submitted by DJ

Rating: 4.3333 (9 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

re: is 4 not ok ??

| Comment 15 of 24 |

(In reply to is 4 not ok ?? by Babu)

How would you arrange 4 pennies so that that happens: that each of them touches the other 3?

Posted by Charlie on 2003-12-27 09:33:53

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