Thursday, 12 February 2015

Mind Reader?!


Could you UNCOVER THE MYSTERY behind the crystal ball?
(in the Algebraic way!)
Submit your explanation under comments...

3 comments:

  1. Let the tens digit be x and ones digit be y
    10x+y=(No.)
    x+y=(No.)-9x
    =(10x+y)-9x
    10x+y-((10x+y)-9x)=9x
    Since the answer would be a multiple of 9, all the numbers that can be divided by 9 would have the same symbol and would be flash on the 'magic' ball.

    ReplyDelete
  2. All the possible nanswers have the same symbol.

    ReplyDelete