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# Inequality and Exponent/Power problem.

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Intern
Joined: 18 Mar 2019
Posts: 4

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09 Apr 2019, 01:57
00:00

Difficulty:

(N/A)

Question Stats:

50% (02:19) correct 50% (01:46) wrong based on 2 sessions

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If a, b, c, and d are integers and ab^2c^3d^4 > 0, which of the following must be positive? I. a^2cd
II. bc^4d
III.a^3c^3d^2

A. I only
B. II only
C. III only
D. I and III
E. I, II, and III

Posted from my mobile device
Math Expert
Joined: 02 Sep 2009
Posts: 55271
Re: Inequality and Exponent/Power problem.  [#permalink]

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09 Apr 2019, 02:07
1
Aseemsharma710 wrote:
If a, b, c, and d are integers and ab^2c^3d^4 > 0, which of the following must be positive? I. a^2cd
II. bc^4d
III.a^3c^3d^2

A. I only
B. II only
C. III only
D. I and III
E. I, II, and III

Posted from my mobile device

Discussed here: https://gmatclub.com/forum/if-a-b-c-and ... 36450.html

Please name topics properly when posting question: https://gmatclub.com/forum/rules-for-po ... 33935.html Thank you.
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Re: Inequality and Exponent/Power problem.   [#permalink] 09 Apr 2019, 02:07
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