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# How many balls are their?

12 replies to this topic

### #11 cpotting

cpotting

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Posted 26 November 2007 - 10:53 PM

Change the signs on the cups to their opposite.

Spoiler for solution

Gee, bonanova, usually you are good at impressing me with your mathematical prowess. However, this time it seems that you decided to travel south to get to the north pole.

If only one statement is true, then only one of the signs has the correct answer. The only number to appear once is "three". That seems like a much more direct way to solve it to me.
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### #12 Ploper

Ploper

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Posted 26 November 2007 - 11:26 PM

that's how I solved it.
I just thought I was wrong for a moment because I answered in how many balls were in each cup.
Not how many there were in total
• 0

### #13 bonanova

bonanova

bonanova

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Posted 27 November 2007 - 02:52 AM

this time it seems that you decided to travel south to get to the north pole.

Nicely put.

Acutally I first solved it by going North. It just seemed more crisp to deal with positive statements.

Anyway, I've retired and have time to travel.
• 0

Vidi vici veni.

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