OG12 Algebra Applied problems一题，请人解答一下

HoneyStella · 发表于 2010-6-7 23:50:19

OG12 Algebra Applied problems

A rainstorm increased the amount of water stored
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, approximately 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

此题题目我左看右看上看下看也没有搞懂它是什么意思！！请赐教

jswxshp89 · 发表于 2010-6-8 00:48:32

大概的意思就是下雨让储存的水从124增加到138，如果下雨使这个容器中的水增加到了总容量的82%，那么下雨前，容器中的水量大概比所能储存的总水量少多少。
不知道翻译得对不对，不过如果是这样的话，应该是选E
(138/82%)-124 =44

OG12 Algebra Applied problems一题，请人解答一下

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