A certain highway is to be divided into 3 lanes. : GMAT Problem Solving (PS)
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A certain highway is to be divided into 3 lanes.

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A certain highway is to be divided into 3 lanes. [#permalink]

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19 Aug 2012, 08:27
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59% (02:55) correct 41% (02:10) wrong based on 37 sessions

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A certain highway is to be divided into 3 lanes. For this purpose two yellow stripes are to be painted so that stripes divide the highway into 3 lanes. If 3 gallons of paint covers an area of 2P square feet of highway, how many gallons of paint will be needed to paint two stripes x inches wide on a stretch of highway m miles long.(1 mile = 5280 feet and 1 feet = 12 inches)

A) 220xm/p

B) 5280xmp/12

C) 1320xm/p

D) 440xm/p

E) 220mp/x
[Reveal] Spoiler: OA
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Re: A certain highway is to be divided into 3 lanes. [#permalink]

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19 Aug 2012, 08:54
Area to be painted = # of stripes * Length of stripes * width of stripes = 2 * 5280 m * (x/12) Sq. Feet

2p sq. feet - 3 Gallon

1 sq. feet - 3/2p Gallon

For [2 * 5280 m * (x/12)] Sq. Feet - [2 * 5280 m * (x/12) Sq. Feet ] * [3/2p] = 1320xm/p Gallon
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Re: A certain highway is to be divided into 3 lanes. [#permalink]

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14 Nov 2015, 00:04
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Re: A certain highway is to be divided into 3 lanes.   [#permalink] 14 Nov 2015, 00:04
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