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09 May 2016, 09:54
Kudos
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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% (02:20) correct
40%
(02:05)
wrong
based on 5
sessions
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A certain store sells milk for x dollars per gallon. If the store purchases the milk for y dollars per gallon, how much per gallon does the store profit from the milk that it sells?
(1) The store marks up every gallon of milk that it sells by 50 percent.
(2) x + y = 12
(1) The store marks up every gallon of milk that it sells by 50 percent.
(2) x + y = 12
Archived Topic
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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09 May 2016, 10:33
Kudos
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Bunuel
Hi
we are basically asked x-y...
(1) The store marks up every gallon of milk that it sells by 50 percent.
this will give a ratio between x and y...
x=1.5y..
but we require a numeric value ..
Insuff
(2) x + y = 12
two variables ONE equation
insuff
Combined ..
ratio of two variables and ONE equation of those two variables..
suff
x=1.5y..
x+y=12 = 1.5y+y=2.5y..
so y = 12/2.5 = 4.8
x= 4.8*1.5 ..
ans = x-y = 4.8*0.5 = 2.4
Suff
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Data Sufficiency (DS) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
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