### Random Post

### Recent Posts

### Recent Comments

### Archives

### Categories

- article (11)
- enigma (1,149)
- misc (2)
- project euler (2)
- puzzle (38)
- site news (44)
- tantalizer (40)
- teaser (3)

### Site Stats

- 175,242 hits

Advertisements

Programming Enigma Puzzles

5 February 2012

Posted by on **From New Scientist #2745, 30th January 2010** [link]

I played a little logical game with my two highly intelligent godsons, Proddy and Addy. I had in mind three different digits chosen from 1 to 8 and I whispered the product of the three to Proddy and the sum of the three to Addy. I explained all this to them and our conversation then went as follows:

Me:“Proddy, can you now work out what my three numbers are?”

Proddy:“No.”

Me:“Now do you think that Addy will be able to work out what my numbers are?”

Proddy:“No, he will not be able to work them out.”

Addy:“Now I know what the numbers are!”What are they?

[enigma1580]

Advertisements

%d bloggers like this:

The following Python program runs in 37ms.

Solution:The numbers are 2, 3 and 4.