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# If A & B are real numbers and A = 12/x and B = 2/y .then

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Senior Manager
Joined: 18 Jun 2007
Posts: 285
If A & B are real numbers and A = 12/x and B = 2/y .then [#permalink]

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17 Oct 2008, 10:02
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If A & B are real numbers and A = 12/x and B = 2/y….then x and y can’t be 0, because it will make them indefinite. What is the product of real numbers A & B?
I) A = 2/xm
II) B =24xm

Xm can’t be 0, so AB = 48, so ans is “C”.
SVP
Joined: 17 Jun 2008
Posts: 1529

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17 Oct 2008, 10:56
Since x is non-zero, AB = 48 (using A and B). Hence, C.
Re: DS:real numbers   [#permalink] 17 Oct 2008, 10:56
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