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# At Larry s Auto Supply Store, Brand X antifreeze is sold by

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Director
Joined: 26 Sep 2005
Posts: 572
Location: Munich,Germany
At Larry s Auto Supply Store, Brand X antifreeze is sold by [#permalink]

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30 Dec 2005, 23:31
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At LarryÂ¡Â¯s Auto Supply Store, Brand X antifreeze is sold by the gallon and Brand Y motor oil is sold by the quart. Excluding sales tax, what is the total cost for 1 gallon of Brand X antifreeze and 1 quart of Brand Y motor oil?

(1) Excluding sales tax, the total cost for 6 gallons of Brand X antifreeze and 10 quarts of Brand Y motor oil is $58. (There is no quantity discount.) (2) Excluding sales tax, the total cost for 4 gallons of Brand X antifreeze and 12 quarts of Brand Y motor oil is$44. (There is no quantity discount.)
SVP
Joined: 05 Apr 2005
Posts: 1710
Re: DS- gallons and quarts [#permalink]

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30 Dec 2005, 23:36
is there anything special?

C.
i. 6x+10y = 58
ii. 4x+12y = 44
Director
Joined: 26 Sep 2005
Posts: 572
Location: Munich,Germany

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30 Dec 2005, 23:55
OA is C

there is nothing special here but if there is a way to convert quarts to gallons or vice versa then the answer could change.
30 Dec 2005, 23:55
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