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# Aquarium A holds 150 gallons more seawater than does Aquarium B, and b

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Math Expert
Joined: 02 Sep 2009
Posts: 58453
Aquarium A holds 150 gallons more seawater than does Aquarium B, and b  [#permalink]

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28 Feb 2019, 00:01
00:00

Difficulty:

45% (medium)

Question Stats:

71% (02:16) correct 29% (02:46) wrong based on 21 sessions

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Aquarium A holds 150 gallons more seawater than does Aquarium B, and both aquariums are currently filled to capacity. If 20 gallons are removed from each aquarium, then Aquarium A would hold four times as much seawater as Aquarium B holds. What is the combined total number of gallons of seawater that can be held in both aquariums?

A. 290
B. 250
C. 220
D. 200
E. 70

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Joined: 18 Aug 2017
Posts: 5017
Location: India
Concentration: Sustainability, Marketing
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Re: Aquarium A holds 150 gallons more seawater than does Aquarium B, and b  [#permalink]

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28 Feb 2019, 06:31
Bunuel wrote:
Aquarium A holds 150 gallons more seawater than does Aquarium B, and both aquariums are currently filled to capacity. If 20 gallons are removed from each aquarium, then Aquarium A would hold four times as much seawater as Aquarium B holds. What is the combined total number of gallons of seawater that can be held in both aquariums?

A. 290
B. 250
C. 220
D. 200
E. 70

tank b = x
tank a = 150+x

so
150+x-20=(x-20)*4
x=70; tank b
so
tank a = 70+150 ; 220
total tank a + b = 220 +70 ; 290
IMO A
Re: Aquarium A holds 150 gallons more seawater than does Aquarium B, and b   [#permalink] 28 Feb 2019, 06:31
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