Weekly Puzzle 3) Choose a Number between 1 and 9
I found this puzzle in a clip on YouTube: Click Here. It was posted by this person (The CoolStuff)This trick can be done without cards. All you have to do is to get your victim Victoria, to choose two numbers, each one between 1 and 9. Doing it with cards is more fun but 10s and picture cards should be excluded.
1) Take a deck and ask Victoria to choose any card. Let her know that it cannot be a picture and it cannot be a 10. Victoria should not show it to you. The suit is not important. Say this card has a face value V.
2) Let Victoria double the value of V (now 2V)
3) She should then add 5 to the answer (now 2V+5).
4) Let Victoria multiply the answer by 5 (now 5 * (2V+5))
5) Let Victoria choose another card (also not a picture nor a 10) and add its value to the answer. Say this number is W (now W + 5 * (2V+5)).
6) Victoria can now give you the answer.
Marvel: subtract 25 from the answer and you get a 2 digit answer, say 67. You can then tell Victoria that her first card was a 6 (the tens digit) and her second card was a 7, the one’s digit.
Click Here to view the solution.