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A tank that was 40% full of oil was emptied into a 20-gallon
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02 Jun 2018, 03:53
02 Jun 2018, 03:53
Expert Reply
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Question Stats:
90% (01:08) correct
9% (01:01) wrong based on 52 sessions
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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?
(A) 8.75
(B) 15
(C) 16
(D) 17.5
(E) 19
(A) 8.75
(B) 15
(C) 16
(D) 17.5
(E) 19
Re: A tank that was 40% full of oil was emptied into a 20-gallon
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04 Jun 2018, 07:09
04 Jun 2018, 07:09
2
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
OPTION D is the answer
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
OPTION D is the answer
Re: A tank that was 40% full of oil was emptied into a 20-gallon
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14 Jul 2018, 04:48
14 Jul 2018, 04:48
Expert Reply
Explanation
First find the volume of oil in the bucket. The oil fills 35% of the bucket’s 20-gallon volume, or (20)(0.35) = 7 gallons of oil.
These 7 gallons originally filled 40% of the tank. If T is the volume of the tank, T(0.4) = 7, so T = 17.5 gallons.
First find the volume of oil in the bucket. The oil fills 35% of the bucket’s 20-gallon volume, or (20)(0.35) = 7 gallons of oil.
These 7 gallons originally filled 40% of the tank. If T is the volume of the tank, T(0.4) = 7, so T = 17.5 gallons.
