Saturday, 16 February 2013

rectangle to square



A   9X4   rectangle is cut into 8 pieces as shown in the diagram given below.


           

 
Rearrange all   pieces   to   form   a   6X6   square.     
  
                       
 
                        

Friday, 15 February 2013

magic square

The numbers from 1 to 25 have been written in the grid given below.





    1

    8

   15

  17
  
 24       

   18

    25

    2

    9

 11

   10

    12

   19

  21

   3

   22

    4

    6

 13
 
 20           

   14

    16

    23

   5

  7

            The sum  of numbers in each horizontal line,each vertical column and one corner to corner  diagonal is 65.But unfortunately sum of numbers in another diagonal is 70.Rearrange the numbers by moving horizontally left or right to make a magic square. However The diagonal line 1-25-19-13-7 will remain intact.
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