Mathematics, 22.02.2021 03:00 Marqiuse412
Riki wants to write one number in each of the seven sections of the diagram pictured. Two zones are adjacent if they share a part of their outline. The number in each zone should be the sum of all numbers of its adjacent zones. Riki has already placed numbers in two zones. Which number does she need to write in the zone marked „?".
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Riki wants to write one number in each of the seven sections of the diagram pictured. Two zones are...
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