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If a is defferent from zero

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Carcass
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If a is defferent from zero [#permalink] New post   15 Nov 2019, 17:11
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\(a \neq 0\)

Quantity A
Quantity B
\(a+1\)
\(\frac{1}{a} - 1\)


A. The quantity in Column A is greater
B. The quantity in Column B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given

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apokalyptic
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Re: If a is defferent from zero [#permalink] New post   15 Nov 2019, 23:16
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The answer is D.

Lets take a =10 , Quantity A =11 , Quantity B = -0.9 , A>B
Lets take a=1/10 , Quantity A = 1.1 ,Quantity B = 9, B>A
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Re: If a is defferent from zero [#permalink] New post   16 Nov 2019, 07:03
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Carcass wrote:
\(a \neq 0\)

Quantity A
Quantity B
\(a+1\)
\(\frac{1}{a} - 1\)


A. The quantity in Column A is greater
B. The quantity in Column B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given

Kudos for the right answer and solution.


Notice that if we replace \(a\) with a BIG POSITIVE value (e.g., a = 1000), Quantity A gets really BIG, and Quantity B gets small
Conversely, if we replace \(a\) with a SMALL POSITIVE value (e.g., a = 0.000001), Quantity B gets SMALL, and Quantity B gets really BIG

Answer: D

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Brent
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Re: If a is defferent from zero [#permalink]
16 Nov 2019, 07:03
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