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17 Jan 2019, 22:05
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
85%
(hard)
Question Stats:
35% (01:35) correct
65%
(01:41)
wrong
based on 166
sessions
History
Date
Time
Result
Not Attempted Yet
Are the integers p, q, r in an arithmetic progression?
(1) q = p*r
(2) q = p + r
(1) q = p*r
(2) q = p + r
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17 Jan 2019, 22:16
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If p, q and r are in AP, then q = p+r/2
From statement 1:
q = p*r
Hence p, q and r are not in AP.
Sufficient.
From statement 2:
q = p+r
Again, p, q, and r are not in AP.
Sufficient.
D is the answer.
From statement 1:
q = p*r
Hence p, q and r are not in AP.
Sufficient.
From statement 2:
q = p+r
Again, p, q, and r are not in AP.
Sufficient.
D is the answer.
18 Feb 2019, 14:50
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The question doesn't make much sense, so it's not worth worrying about - it's not even clear what it means (do we need p, q and r to be in progression in that order?) Nor do you even need to know what the phrase "arithmetic progression" means for the GMAT. But it's certainly possible that p=q=r=0 here, and 0, 0, 0 is an arithmetic progression, so the answer using both statements is "possibly yes". But it's also "possibly no", since we could have q = 4 and p=r=2.
