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?
Select one option, then click Submit.
10
11
12
13
14
Select an option, then submit.
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Australian Mathematics Competition 2018 - Junior (2018)
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