It is currently 20 Oct 2017, 00:39

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Aquarium A holds 150 gallons more sea water than does Aquar

Author Message
TAGS:
Moderator
Joined: 18 Apr 2015
Posts: 2115
Followers: 30

Kudos [?]: 309 [0], given: 1260

Aquarium A holds 150 gallons more sea water than does Aquar [#permalink]  07 Jun 2017, 02:32
Expert's post
00:00

Difficulty:

5% (low)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

Aquarium A holds 150 gallons more sea water 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 sea water as Aquarium B holds. What is the combined total number of gallons of sea water that can be held in both aquariums?

A) 290

B) 250

C) 220

D) 200

E) 70
[Reveal] Spoiler: OA

_________________
Senior Manager
Joined: 03 Sep 2017
Posts: 363
Followers: 0

Kudos [?]: 102 [0], given: 64

Re: Aquarium A holds 150 gallons more sea water than does Aquar [#permalink]  20 Sep 2017, 05:43
The statement in formulas becomes A=B+150 and A-20=4(B-20). Substituting B from the first equation in the second one we get B=70. Substituting B back in the first equation we get A=220. Thus, the sum of the capacities is 290 and answer is A.
Re: Aquarium A holds 150 gallons more sea water than does Aquar   [#permalink] 20 Sep 2017, 05:43
Display posts from previous: Sort by