GRID PUZZLE

(A) In the first table, fill the numbers from 1 to 9 without repetition such that the individual  row totals, column totals, principal diagonal totals become 15.
      After filling the number, on clicking the cell, the no. gets removed from the repository so that one can see the remaining numbers.

(B) In the second  table, fill the numbers from 1 to 25 without repetition such that the individual  row totals, column totals, principal diagonal totals become 65.
      After filling the number, on clicking the cell, the no. gets removed from the repository so that one can see the remaining numbers.

(C) In the third  table, fill the numbers from 1 to 49 without repetition such that the individual  row totals, column totals, principal diagonal totals become 175.
      After filling the number, on clicking the cell, the no. gets removed from the repository so that one can see the remaining numbers.

( FIRST TABLE )

sum: 

 

( SECOND TABLE )

   
 
sum: 
 

( THIRD TABLE )

       
 
grid
 
sum: