Pick a number............ any number.........
Ok mulitply it by two
Then
Add ten
Then
Divide by two
Finally
Subtract the number you started with
ANSWER: Five (5)
2007-06-08 13:09:23 · 5 answers · asked by Nicole 2 in Science & Mathematics ➔ Mathematics
cool!
this is basically what u do in ur head:
(2x + 10 ) / 2
which basically is
x + 5
so u subtract the x
left with 5
lol
so u can come up with an infinite variation of these...
2007-06-08 13:13:39 · answer #1 · answered by driftaddict87 4 · 1⤊ 0⤋
Let the number be N
(((N x 2) + 10 ) / 2) - N
= ((2N + 10 ) / 2 ) - N
= N + 5 - N
= 5, regardless of what N happens to be
2007-06-08 20:15:47 · answer #2 · answered by smui0123 3 · 0⤊ 0⤋
Nice. You're a psychic!
2007-06-08 20:15:21 · answer #3 · answered by aximili12hp 4 · 0⤊ 0⤋
I knew that one only different, but it's still awesome!!!
2007-06-08 20:13:05 · answer #4 · answered by monkey 2 · 0⤊ 0⤋
Hi. Do do do do...
2007-06-08 20:13:43 · answer #5 · answered by Cirric 7 · 0⤊ 0⤋