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18 December, 06:53

A forester is making a gasoline-oil mixture for a chainsaw engine. The forester has 2 gallons of a mixture that is 29 parts gasoline and 1 part oil. How many gallons of gasoline should the forester add to bring the mixture to 49 parts gasoline and 1 part oil?

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  1. 18 December, 07:10
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    1 1/3 gallons should be added.

    if 30 parts = 2 gallons

    therefore 15 parts = 1 gallon

    49-29 = 20

    20 - 15 (aka 1 part) = 5

    5/15 = 1/3
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