Problem
First name
Peter Cook
School
Durham Johnston
Country
Age
13
Filename
Email address
petersanuelcook@hotmail.com
Firstly, I worked out that the number that each row/column had to add up to was 33 as the mean x 3 of all the numbers = 33.
1) Then, I gave every Square a letter.
2) I then added 12 into c as 33-7-14=12.
3) I then looked at what squares could have 15 in and found out that only d could have 15 in.
4)Finally, I added the rest of the numbers in adding every column up to 33. I found that n=8.