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教育王國 討論區 初中教育 求救, 數學題
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求救, 數學題

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2518
發表於 18-3-4 11:18 |顯示全部帖子
In a school, students must study at least one language from german, french and spanish of these students: 7study all three of the languages, 10 study both german and french, 12 study both spanish and german, 9 study both french and spanish, 16 study spanish, 18 study german              work out the total number of the students in the class who study, You may use the Venn diagram to help with your calculations.

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499
發表於 18-3-4 14:10 |顯示全部帖子
dsedse 發表於 18-3-4 11:18
In a school, students must study at least one language from german, french and spanish of these stud ...
22

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dsedse    發表於 18-3-5 11:58
cornelius    發表於 18-3-4 14:55

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3780
發表於 18-3-4 14:59 |顯示全部帖子
本帖最後由 cornelius 於 18-3-4 15:01 編輯
dsedse 發表於 18-3-4 11:18
In a school, students must study at least one language from german, french and spanish of these stud ...
22 (see the Venn diagram attached)

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dsedse    發表於 18-3-5 11:59
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