請幫我解譯
2007-08-08 6:12 am
15.In a school,50% of the girls wear glasses while 280 of boys wear glsses.If the numbers of boys, find the number of girls.
回答 (2)
2007-08-08 7:01 am
✔ 最佳答案
The number of girls=[280X(2/7)]/50%=160
2007-08-08 6:32 am
你題問題應該打少左ｄ野呀
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https://hk.answers.yahoo.com/question/index?qid=20070807000051KK05324