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05 May 2016, 04:49
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
60% (02:00) correct
40%
(00:47)
wrong
based on 5
sessions
History
Date
Time
Result
Not Attempted Yet
Is a/b > c/d?
(1) ad > cb
(2) a, b, c, d > 0
(1) ad > cb
(2) a, b, c, d > 0
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Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
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05 May 2016, 15:01
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Bunuel
Is a/b > c/d?
(1) ad > cb
if you multiply both sides by any factor (a, b, c, or d) then we can't determine whether to switch the inequality or not.. it depends on the signs of the variables
Statement 1 is not sufficient
(2) a, b, c, d > 0
The values of the variables are unknown, so we can't compare both ratios
Statement 2 is not sufficient
Both statements together
Since all the variables are positive, then when you divide both sides by "d" and then divide again by "b" ---> a/b > c/d
Both statements together are sufficient
The answer is (C)
Tmoni26
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05 May 2016, 15:34
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deabas, I may be wrong again but
if stmt 1 is true, that means all signs will hold true for the inequality....we do not have to consider switching signs, hence my reason for picking A.
Can someone please come up with a counter example
if stmt 1 is true, that means all signs will hold true for the inequality....we do not have to consider switching signs, hence my reason for picking A.
Can someone please come up with a counter example
