求一道GMAT数学题Of the 32 students in a certain class,15 are in a
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求一道GMAT数学题
Of the 32 students in a certain class,15 are in a music club and 20 are in a dance club.If 10 of the students are not in either club,how many of the students are in only one of the two clubs?
Of the 32 students in a certain class,15 are in a music club and 20 are in a dance club.If 10 of the students are not in either club,how many of the students are in only one of the two clubs?
![求一道GMAT数学题Of the 32 students in a certain class,15 are in a](/uploads/image/z/7844114-2-4.jpg?t=%E6%B1%82%E4%B8%80%E9%81%93GMAT%E6%95%B0%E5%AD%A6%E9%A2%98Of+the+32+students+in+a+certain+class%2C15+are+in+a)
同时参加唱歌和跳舞的:15+20+10-32=13
所以只参加一个的15+20-13*2=9
所以只参加一个的15+20-13*2=9
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