guerrero wrote:If ab > cd and a, b, c and d are all greater than zero, which of the following CANNOT be true?
A. c > b
B. d > a
C. b/c < d/a
D. a/c > d/b
E. (cd)^2 < (ab)^2
OA C
Since all of the values are positive, we can cross-multiply answer choices C and D:
C: ab < cd
D: ab > cd
Since
C contradicts the constraint in the question stem that ab > cd,
C cannot be true.
The correct answer is
C.
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