Bored people - try this?

Question

1. Think of a number
2. Add the next highest number to it
3. Add nine
4. Divide by two
5. Subtract the original number

Do you get 5? How did I know?

Answer 1

Good job.

For those who need explanation, there it is:

x number plus x+1;
x+x+1 => 2x+1;
2x+1+9 => 2x + 10;
(2x+10)/2 => x + 5;
x+5 - x = 5.

It's simple. The number you thought was never used in the calculation. 5 came from 9 that was added. if you add 11 then the remainder would be 6, and so on.

Answer 2

Cool, I did get 5. My number was 2. It is very simple, here's an example for people who don't understand. I will use the number 30 for this example.

Example: 30+31=61
61+9=70
70 divided by 2= 35
35-30=5

It works with any number.

Answer 3

COOL~ if we plus 3 instead of 9, we'll get the answer always of 2

Answer 4

Always a good joke to use at a boring party--makes you look like you know something..Most people wont know how you derived at the answer..keep them guessing!!!

Answer 5

Wow, I have heard of this before but none of them worked except for this one. Good job and super fun too!

Answer 6

How did you know? I don't know. But that was cool! Could you give us something like that again? :-P My number was 9!

Answer 7

Because you thought of every number first and tried it to see what would happen, or you are psycho, I mean psychic

Answer 8

Oldie but a goodie

Answer 9

I Know, no matter what number you choose you'll get five. I know one but its with 9.

Answer 10

I agree with tea cup