A riddle for Monh (Pham)

alright, if you like riddles, heres one for ya!

How can 10 = 2 if you can only use the numbers 10 and 2 as well as any math operator, but you can only use an operator once in the sequence? EX. 10 - 2 - 2 - 2 - 2 = 2 is not correct because the subtact operator was used 4 times.

-Tallyn

p.s. There is 2 ways to do this one.

Its for Pham, but yeah, I used OoO

ok can you explain the riddle into more details, cause i know thers a trick to it, but yea jus explain more.

ok... so the point of the riddle is to get from 10 to 2 or from 2 to 10. You can perform any math operator on the first number but you can only use the numbers 10 and 2 to do the operator.

EX. 10 + 2 = 12 is a valid move, whereas 10 + 6 is not.

after performing the first operator, you may perform a second math operator on the previous result.

EX. from the previous example, 10 + 2 = 12... 12 / 2 = 6

the only restriction on the mathematical operators are that you can only use each once...

EX. 10 - 2 - 2 - 2 - 2 = 2 is not valid because - was used more then once.

You must repeat the operators until you get from 10 to 2 or 2 to 10... depending on the number you want to start with.

Once again... there are two ways to do this (a very easy way which requires only 2 operators) and a not so easy way.


Hope this clarifies things up.
-Tallyn

im guessing you give up?

WY DID THE CHICKEN CROSS THE ROAD

10-2=8 8*2=16 16-2=14 14/2=7 7+2=9 9*2=18 18-2=16 16/2 =8 8/2=4 8-2=2 yeah i did it
lol

D.Ellenberger wrote:

10-2=8 8*2=16 16-2=14 14/2=7 7+2=9 9*2=18 18-2=16 16/2 =8 8/2=4 8-2=2 yeah i did it
lol

sorry but that is incorrect... you subtracted more then 1 time, divided more then 1 time, and multiplied more then 1 time.
you can only use a single math operator ONCE!

Alright... so here's the solutions:

easy: 2 * 10 = 20
20 / 2 = 10


a little harder: use the change of base formula
10(base 2) = 2(base 10)

OHHKKK...
10 DIVIDED BY 5=2 XDXDXDXD