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Fractions question

by Troika » Sun Aug 21, 2011 10:46 am
A rainstorm increased the amount of water store in State J reservoirs from 124 billion gallons to 138 billion gallons. If the storm increased the amount of water in the reservoirs to 82 percent of total capacity, how many billion gallons of water were the reservoirs short of total capacity prior to the storm?

(A) 9
(B) 14
(C) 25
(D) 30
(E) 44

Answer: E
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by Tani » Sun Aug 21, 2011 2:34 pm
We know that 138 billion is 82% of capacity so capacity must be approx 168 billion gallons. So 168-124 = 44 billion gallons
Tani Wolff
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by Troika » Wed Aug 24, 2011 6:50 am
Thanks Tani!
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