A magician asks you to choose two integers between 1 and 50 and add them.
Then add the largest two of the three integers at hand.
Then add the largest two again.
Repeat this around ten times.
Disclose to the magician your final number n.
The magician then tells you the next number.
(In reply to I would need a calculator (spoiler)
by Steve Herman)
The magician needs a calculator preset to 1.61803 * .
As soon he hears the number, he enters it and announces the result prior to getting it calculated by the "victim".
It works !
Tried it on 1,2, 1,50, 25,26 and 49,50.
Edited on December 26, 2013, 12:39 pm