If 2,4 = 6 and 3,7 = 10 and 5,2 = 7, then 8,5 = ?

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• A 13
• B 40
• C 3
• D 85

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Answer: A. 13

Explanation: The rule is simply adding the two numbers.
2 + 4 = 6
3 + 7 = 10
5 + 2 = 7
8 + 5 = 13

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