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GMAT Official Guide 2019 The price of gasoline at a

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GMAT Official Guide 2019 The price of gasoline at a

by BTGmoderatorDC » Sun Jul 01, 2018 6:25 pm

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The price of gasoline at a service station increased from $1.65 per gallon last week to $1.82 per gallon this week. Sally paid $26.40 for gasoline last week at the station. How much more will Sally pay this week at the station for the same amount of gasoline?

A. $1.70

B. $2.55

C. $2.64

D. $2.72

E. $2.90
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by Jay@ManhattanReview » Sun Jul 01, 2018 10:27 pm
BTGmoderatorDC wrote:The price of gasoline at a service station increased from $1.65 per gallon last week to $1.82 per gallon this week. Sally paid $26.40 for gasoline last week at the station. How much more will Sally pay this week at the station for the same amount of gasoline?

A. $1.70

B. $2.55

C. $2.64

D. $2.72

E. $2.90
Gallons Sally bought last week = 26.40/1.65

Amount Sally will have to pay this week = [26.40/1.65]*1.82 = 16*1.82 = $29.12

Amount Sally will have to pay = 29.12 - 26.40 = $2.72

The correct answer: D

Hope this helps!

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by Shahrukh_mbabreakspace » Mon Jul 02, 2018 5:17 am
Gallons Sally bought = 26.40/1.65= 16
Increase in the amount paid= (1.82-1.65)*16= 2.72
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by Scott@TargetTestPrep » Wed Jul 04, 2018 6:11 pm
BTGmoderatorDC wrote:The price of gasoline at a service station increased from $1.65 per gallon last week to $1.82 per gallon this week. Sally paid $26.40 for gasoline last week at the station. How much more will Sally pay this week at the station for the same amount of gasoline?

A. $1.70

B. $2.55

C. $2.64

D. $2.72

E. $2.90
Since $26.40 bought 26.40/1.65 = 16 gallons last week, and this week she has to pay 1.82 - 1.65 = $0.17 more per gallon, she has to pay 16 x 0.17 = $2.72 more this week for the same amount of gasoline.

Answer: D

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