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29 Sep 2015, 05:04
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A
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:
62% (01:47) correct
38%
(02:20)
wrong
based on 181
sessions
History
Date
Time
Result
Not Attempted Yet
The Population of a city, which was x in January, increases by a certain amount in February of the same year and becomes y. Then y increases by a certain amount in March of the same year and becomes z. Is the percentage change from x to y greater than that from y to z?
(1) y – x = z - y
(2) x =150, z = 300
Kudos for a correct solution.
(1) y – x = z - y
(2) x =150, z = 300
Kudos for a correct solution.
camlan1990
Joined: 11 Sep 2013
Last visit: 19 Sep 2016
Posts: 95
Own Kudos:
Given Kudos: 26
Schools: Kenan-Flagler '17 SMU '17 McCombs '19
29 Sep 2015, 06:26
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Bunuel
Requirement: (z/y-1) - (y/x-1)
(1) y – x = z - y
Do not know x, y => INSUF
(2) x =150, z = 300
Do not know: y => INSUF
(1)+(2) => The value of X, Y, and Z => (z/y-1) - (y/x-1)
SUFFICIENT
Ans: C
29 Sep 2015, 13:03
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Answer = A
Attachments
population of city.jpg [ 747.76 KiB | Viewed 2707 times ]
