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Practice Question #1-Which two of the following numbers

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Director
Director
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Joined: 16 May 2014
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GRE 1: 326 Q165 V161
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Practice Question #1-Which two of the following numbers [#permalink] New post 29 May 2014, 08:09
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A
B
C
D
E

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Which two of the following numbers have a product that is between –1 and 0?

Indicate both of the numbers.

(A) –20
(B) –10
(C) \frac{1}{2^4}
(D) \frac{1}{3^2}
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Director
Director
User avatar
Joined: 16 May 2014
Posts: 597
GRE 1: 326 Q165 V161
Followers: 72

Kudos [?]: 313 [0], given: 64

Re: Practice Question #1 [#permalink] New post 29 May 2014, 08:15
Expert's post

Solution


For this question, you must select a pair of answer choices. The product of the pair must be negative, so the possible products are (-20)/2^4, (-20)/3^2,(-10)/2^4 & (-20)/3^2.
The first product is (-20)/2^4 = -\frac{20}{16} < -1, the second product is (-20)/3^2 = -\frac{20}{9} < -1, and the third product is, (-10)/2^4 = -\frac{10}{16} < -1, so you can stop there.
The correct answer consists of Choices B (–10) and C \frac{1}{2^4}.
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Re: Practice Question #1   [#permalink] 29 May 2014, 08:15
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Practice Question #1-Which two of the following numbers

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