Question 22
The numbers from 1 to 8 are entered into the eight circles in this diagram, with the number 3 placed as shown.
In each triangle, the sum of the three numbers is the same.
The sum of the four numbers which are at the corners of the central square is 20.
What is $x+y$?
In each triangle, the sum of the three numbers is the same.
The sum of the four numbers which are at the corners of the central square is 20.
What is $x+y$?