Magic Gopher

[rob62521]

Someone sent me this site and it's supposed to be a guess the magic number game. It's kind of cute.

http://www.learnenglish.org.uk/games...er-central.swf

[zakity]

Talk about freakin flippy!!!

[sweeps]

Let a be the first digit and b be the second digit in your number.

Your number is 10 * a + b . If you subtract (a + b) from that number, that leaves you with 9 * a . The "gopher" just puts the "magic" symbol next to all multiples of 9 (9, 18, 27, etc.) and, voila, he's chosen your symbol.

[rob62521]

Originally Posted by sweeps

Let a be the first digit and b be the second digit in your number.

Your number is 10 * a + b . If you subtract (a + b) from that number, that leaves you with 9 * a . The "gopher" just puts the "magic" symbol next to all multiples of 9 (9, 18, 27, etc.) and, voila, he's chosen your symbol.

Heavens, you're clever! Thanks for explaining it!

[zakity]

Awww... Thanks! I knew there had to be a trick to it.