A certain doctor suggests that an individual’s daily water intake be 1/2 ounce per pound of body weight plus 8 ounces for every 25pounds by which the individual exceeds his or her ideal weight. If this doctor suggests a daily water intake of 136 ounces for a particular 240-pound individual, how many pounds above his or her ideal weight is that individual?
A. 12 ?
B. 16
C. 30
D. 50
E. 120
题目翻译：某医生建议一个人每天的水的摄入量应该是每磅体重喝1/2盎司的水，若体重超过了标准体重，那么超标的部分每25磅就多喝8盎司的水。医生建议一个240磅重的人每日摄水量应该是136，那么这个人的体重超过了标准体重多少磅呢?
解答：医生建议每人每天水的摄入量是 1/2(盎司/磅体重) ---注意这里是总体重-----再加上(体重-标重体重) X8/25，如果医生给一个体重为 240 磅的人建议的每日水摄入量是 136 盎司，那么这个人比理想体重重了多少?列个一元一次方程就可以解出来了240X1/2+8χ/25=136，看看这个公式就明白了 136-(240/2)=16 所以 16/8*25=50。答案选择D。
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