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If the symbol \(@\) represents either addition or multiplication, which operation does it represent?

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by Gmat_mission » Sun May 31, 2020 1:47 pm

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If the symbol \(@\) represents either addition or multiplication, which operation does it represent?

(1) \(a@b = b@a\) for all numbers \(a\) and \(b\)
(2) \(a@(b – c) = (a@b) – (a@c)\) for all numbers \(a, b,\) and \(c\)

[spoiler]OA=B[/spoiler]

Source: GMAT Prep
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