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# For all numbers x and y, the operation & is defined by x&y

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For all numbers x and y, the operation & is defined by x&y [#permalink]  27 Aug 2018, 09:32
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Question Stats:

78% (00:45) correct 21% (00:35) wrong based on 14 sessions
For all numbers x and y, the operation & is defined by $$x&y = \frac{x-y}{x-1}$$ . If $$(-3)&q=2$$, then q =

A. -11

B. -8

C. -5

D. 5

E. 11
[Reveal] Spoiler: OA

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Re: For all numbers x and y, the operation & is defined by x&y [#permalink]  28 Aug 2018, 06:54
(-3-q)/(-3-1) = 2

solve this and you get q = 5
Re: For all numbers x and y, the operation & is defined by x&y   [#permalink] 28 Aug 2018, 06:54
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