在CD看到的..
12 current students in chemical department's graduate program had
been in the departments' undergraduate program. The 12 students are
what percent of the number of current students in departments'
graduate program?
1) 200 current students in departments' undergraduate program are
not in department's graduate program .
2) 72 current students in departments' graduate program had not
been in the departments' undergraduate program.
1) 沒有用→沒問題
2) 得 12/(12+72)=1/7?
CD上的爭議好像是說 第二個條件沒有鎖定在"chemical department"
但是真的要看到那麼細嗎？
直覺上departments'指的就是chemical department..
大家覺得呢？謝謝
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