Ask your friend to think of a number between 1-9.
Then that number multiplied by the number 3 (x 3)
The result is added the number 3 (+ 3)
The result is multiplied by the number 3 (x 3)
As a result, the two-digit result is added.
And you certainly can answer it, because the result is always number 9 (nine).
example:
your friend think of the numbers 5
5 x 3 = 15
15 + 3 = 18
18 x 3 = 54
two digits of 54 is added, 5 + 4 = 9
good luck! :)
Tuesday, January 28, 2014
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