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x = 3.635 • 10^16

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x = 3.635 • 10^16 [#permalink] New post   15 Apr 2018, 09:55
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A
B
C
D

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95% (00:30) correct 4% (00:07) wrong based on 45 sessions

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x=3.635∗1016

Quantity A
Quantity B
x+1x−1
x−1x+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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A
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Re: x = 3.635 • 10^16 [#permalink] New post   16 May 2018, 02:21
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option A is the correct answer because when x is added 1 and divided with X-1 the QUOTIENT will be bigger to the QUOTIENT when X-1 is divided with X+1.

hence option A.

this question simply test our fundamental of quotient.
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Re: x = 3.635 • 10^16 [#permalink] New post   25 Sep 2018, 02:17
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3635 * 10^12, this is how we can rewrite the question, is so big compared to 1 so that adding or subtracting 1 from it won't make much difference.
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Re: x = 3.635 10^16 [#permalink] New post   12 Aug 2022, 22:03
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One approach is to notice that in quantity A the numerator is increasing and the denominator decreasing, which will make the whole number bigger than quantity B.

Another way to cross multiply to get

A: (x + 1)^2
B: (x - 1)^2

x^2 and 1^2 can cancel on both sides and we are left with:

A: 2x > B: -2x
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Re: x = 3.635 10^16 [#permalink]
12 Aug 2022, 22:03
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