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15 May 2008, 01:31
Kudos
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N
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A gasoline mixture contains g liters gasoline, b liters benzene, and a liters of other additives. If there is 12 liters of gasonline mixture in an automobile tank how many liters of additives are in the tank?
(1) If 3 liters of additives were added to the mixture benzene would only account for 30% of the total mixture.
(2)
(1) If 3 liters of additives were added to the mixture benzene would only account for 30% of the total mixture.
(2)
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15 May 2008, 13:56
Kudos
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Hi, I would say C without really solving this I see that there are 3 variables , to solve this we would need 3 equations, answer choice C would provide us with three different equations.
16 May 2008, 05:14
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ventivish
I found out A as a response.
Because, if i understand well the text, first assumption => a+3 = 30% of total so a+3 = 30% of (12+3) So we have our quantity a!
second assumption give us an equation but is not sufficient because we will have only 2 equations for 3 variables.
Or am i wrong?
