In the diagram, ♠, ♦ and ♣ each represent a positive integer. The sums ofthe numbers in each row and in each column are as shown.
What is the value of ♠ + ♦ − ♣?
Select one option, then click Submit.
12
17
18
22
23
Select an option, then submit.
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Junior Kangaroo 2019 (2019)
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