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A tank that was 40% full of oil was emptied into a 20-gallon [#permalink]
02 Jun 2018, 03:53

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Question Stats:

100% (00:51) correct
0% (00:00) wrong based on 9 sessions

A tank that was 40% full of oil was emptied into a 20-gallon bucket. If the oil fills 35% of the bucket’s volume, then what is the total capacity of the tank, in gallons?

Re: A tank that was 40% full of oil was emptied into a 20-gallon [#permalink]
04 Jun 2018, 07:09

1

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The answer is D because of following reasons:

1- 20 * .35 (since the oil in the tank can fill only this much of capasity) therefore = 7 gallon. 2- since we dont know the full capasity of the tank we denote it as X 3- 7 is 40% of X Therefore 7=.40X. 4- 7/.40= X 5- 17.5 = X