Number Trick! Can YOU Solve?

Question

Number Trick! Can YOU Solve?

Answer 1

Like Jake Paton said, you can add 185 then divide by 20.



OR...



You do the opposite operation, in reverse order



That is divide by 5, add 32 dibide by 2, etc.



That would takes longer.



OR...

You can divide by 20 first, then add 9.5

Answer 2

This is no trick, it is simple algebra.

The number my friend finally gives me after I tell him/her to do all these calculations is just:



y = 5[2(2x-3)-31], where x is the number he/she picked.



So,



x = (y + 185)/20 and y is given to you by your friend who has just done a bunch of calculations for nothing.

Answer 3

He is mentalist.:D

Answer 4

i did it and it didnt work

Answer 5

Didnt work with my number... I chose 100

Answer 6

... Answer = 5 * ( 2 * ( 2*x - 3) - 31 )

or 20x - 185 = Answer

or x = ( Answer + 185 ) / 20

Answer 7

It didn't work with my number.

Answer 8

pick a number: x

multiply by 2: 2x

subtract 3: 2x-3

multiply by 2: 4x-6

subtract 31: 4x -37

multiply by 5: 20x - 185



so add 185 and then divide by 20