fameatop wrote:

A small pool filled only with water will require an additional 300 gallons of water in order to be filled to 80% of its capacity. If pumping in these additional 300 gallons of water will increase the amount of water in the pool by 30%, what is the total capacity of the pool in gallons?

A. 1000

B. 1250

C. 1300

D. 1600

E. 1625

Difficult one in terms of understanding the wording under exam conditions.

we know that 300 gallons will increase the amount of existing water up to 30%, lets say there are x gallons of water and we add 300 => x+300=1.3x => x=1000

Now we now that 1000 gallons already exist in the tank and we add 300 => 1000+300=1300, which is 80% of the total capacity.

So the total capacity is (1300*100)/80=1625

Answer is E.

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