Re: [問題] pp DS 其中一題...
(1)因為J是at least 100 students,所以不能算
for example:
if J=100
(4/100)F=(16/100)J => F=4J => F>J
if J=1000
(4/100)F=(16/1000)J=> F=(2/5)J => F<J
※ 引述《amyliu0726 (nanako)》之銘言：
: 23. 1653-!-item-!-187;#058&000843
: At least 100 students at a certain high school study Japanese. If 4 percent of the students at the school who study French also study Japanese, do more students at the school study French than Japanese?
: (1) 16 students at the school study both French and Japanese.
: (2) 10 percent of the students at the school who study Japanese also study French.
: 破解版的答案是B
: 但我覺得第一個選項也可以算出來吧...不行嗎? 是我算法錯了嗎???
: 拜託大家幫我解答一下~~謝謝!!!!
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12/08 22:58, , 1F
12/08 22:58, 1F
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