If a,b,c and d are positive integers, is . . . . .

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If a,b,c and d are positive integers, is (a/b)(c/d) > c/b?

(1) c>b
(2) a>d

The OA is the option B.

Is sufficient the option B? How can I get an asnwer here with the second statement? Experts, I need your help. <i class="em em-confused"></i>

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by GMATGuruNY » Mon Feb 26, 2018 3:38 am
M7MBA wrote:If a,b,c and d are positive integers, is (a/b)(c/d) > c/b?

(1) c>b
(2) a>d
Since the problem is constrained to POSITIVE VALUES, simplify (a/b)(c/d) > c/b:
(a/b)(c/d) > c/b
(a/d)(c/b) > c/b
a/d > 1
a > d.
Question stem, rephrased:
Is a > d?

Statement 1:
No information about a or d.
INSUFFICIENT.

Statement 2:
SUFFICIENT.

The correct answer is B.
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