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GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2506
Given Kudos: 1055
GPA: 3.39
A solid yellow stripe is to be painted in the middle of a certain high
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21 Jun 2022, 09:55
21 Jun 2022, 09:55
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Question Stats:
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A solid yellow stripe is to be painted in the middle of a certain highway. If 1 gallon of paint covers an area of p square feet of highway, how many gallons of paint will be needed to paint a stripe of t inches wide on a stretch of highway m miles long? (1 mile = 5,280 feet and 1 foot = 12 inches)
A. \(\frac{5,280 mt}{12 p}\)
B. \(\frac{5,280 pt}{12m}\)
C. \(\frac{5,280pmt}{12}\)
D. \(\frac{5,280*12m}{pt}\)
E. \(\frac{5,280*12p}{mt}\)
A. \(\frac{5,280 mt}{12 p}\)
B. \(\frac{5,280 pt}{12m}\)
C. \(\frac{5,280pmt}{12}\)
D. \(\frac{5,280*12m}{pt}\)
E. \(\frac{5,280*12p}{mt}\)
GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2506
Given Kudos: 1055
GPA: 3.39
Re: A solid yellow stripe is to be painted in the middle of a certain high
[#permalink]
26 Jun 2022, 21:33
26 Jun 2022, 21:33
1
Expert Reply
unit of m = distance
unit of t = distance
unit of p = area = distance X distance
we are looking for an answer in gallon ... so all units of distance should cancel each other ...
eliminate B, C, D, .. between A and E
p sq feet ------------- 1 gallon
xyz sq feet ----------- xyx/p gallon ---> p should come in denominator
Answer A,
30 seconds ... max
unit of t = distance
unit of p = area = distance X distance
we are looking for an answer in gallon ... so all units of distance should cancel each other ...
eliminate B, C, D, .. between A and E
p sq feet ------------- 1 gallon
xyz sq feet ----------- xyx/p gallon ---> p should come in denominator
Answer A,
30 seconds ... max
gmatclubot
Re: A solid yellow stripe is to be painted in the middle of a certain high [#permalink]
26 Jun 2022, 21:33
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