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# The table above gives the gasoline costs and consumption rates for a c

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Board of Directors
Joined: 01 Sep 2010
Posts: 3292
The table above gives the gasoline costs and consumption rates for a c  [#permalink]

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25 May 2017, 12:06
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Top Contributor
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Difficulty:

15% (low)

Question Stats:

85% (01:56) correct 15% (03:12) wrong based on 222 sessions

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The table above gives the gasoline costs and consumption rates for a certain car driven at 50 miles per hour, using each of two brands of gasoline. How many miles farther can the car be driven at this speed on $12 worth of brand I gasoline than on$12 worth of brand Y gasoline?

(A) 20

(B) 24

(C) 84

(D) 100

(E) 104
Attachment:

renlNEa.jpg [ 37.91 KiB | Viewed 4409 times ]

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Joined: 02 Sep 2009
Posts: 51121
Re: The table above gives the gasoline costs and consumption rates for a c  [#permalink]

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25 May 2017, 12:16
carcass wrote:

The table above gives the gasoline costs and consumption rates for a certain car driven at 50 miles per hour, using each of two brands of gasoline. How many miles farther can the car be driven at this speed on $12 worth of brand I gasoline than on$12 worth of brand Y gasoline?

(A) 20

(B) 24

(C) 84

(D) 100

(E) 104
Attachment:
renlNEa.jpg

Miles driven on $12 of brand I gasoline = (number of gallons)*(price per gallon) = 12/0.8*40 =12*50 = 600 miles; Miles driven on$12 of brand II gasoline = (number of gallons)*(price per gallon) = 12/0.75*36 = 12*4/3*36 = 576 miles.

Difference = 600 - 576 = 24 miles.

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Joined: 03 Oct 2013
Posts: 84
Re: The table above gives the gasoline costs and consumption rates for a c  [#permalink]

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25 May 2017, 14:09
2
Brand 1
0.8 dollars gives 1 gallon => 12 dollars give 12/0.8 = 15 gallons
1 gallon gives 40 miles => 15 gallons give 600 miles

Brand 2
0.75 dollars gives 1 gallon => 12 dollars give 12/0.75 = 16 gallons
1 gallon gives 36 miles => 16 gallons give 576 miles

Therefore Brand 1 gives 600-576 = 24 miles more
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Joined: 16 Oct 2010
Posts: 8662
Location: Pune, India
Re: The table above gives the gasoline costs and consumption rates for a c  [#permalink]

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06 Dec 2018, 02:31
carcass wrote:

The table above gives the gasoline costs and consumption rates for a certain car driven at 50 miles per hour, using each of two brands of gasoline. How many miles farther can the car be driven at this speed on $12 worth of brand I gasoline than on$12 worth of brand Y gasoline?

(A) 20

(B) 24

(C) 84

(D) 100

(E) 104
Attachment:
renlNEa.jpg

The table gives the cost and mileage of two brands of gasoline. Brand X is more expensive but goes for longer distance per gallon.
No of gallons of Brand X gasoline obtained in $12 = 12/0.8 gallons Distance travelled by Brand X in these gallons = (12/0.8) * 40 miles No of gallons of Brand Y gasoline obtained in$12 = 12/0.75 gallons
Distance travelled by Brand X in these gallons = (12/0.75) * 36 miles

$$Difference = (\frac{12}{0.8}) * 40 - (\frac{12}{0.75}) * 36 = 12*4* [\frac{50}{4} - \frac{36}{3}] = 48 * (0.5) = 24 miles$$
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[b]Karishma
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Intern
Joined: 20 Mar 2018
Posts: 25
Location: Ghana
Concentration: Finance, Real Estate
Re: The table above gives the gasoline costs and consumption rates for a c  [#permalink]

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06 Dec 2018, 06:06
Hello Karishma thanks, but please I don’t seem to understand how you go the No. of gallons for Both brands,Kindly throw more light on it

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Re: The table above gives the gasoline costs and consumption rates for a c &nbs [#permalink] 06 Dec 2018, 06:06
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# The table above gives the gasoline costs and consumption rates for a c

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