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某市数学竞赛,共有407人参加决赛.获奖的男女人数正好同样多.没获奖的女生占参赛女生的1/9没获奖的
某市数学竞赛,共有407人参加决赛.获奖的男女人数正好同样多.没获奖的女生占参赛女生的1/9没获奖的
发布时间:2021-02-24 03:39:57
某市数学竞赛,共有407人参加决赛.获奖的男女人数正好同样多.没获奖的女生占参赛女生的1/9没获奖的男生有16人,参赛男生有多少人?要算术法?
网友回答
设参赛男生有x人,则获奖的男生有(x-16)人,获奖的女生也是有(x-16)人,参赛的女生就是(x-16)的9/8人因此方程就是x+(x-16)的9/8=407
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有407人参加,其中未获奖女生占获奖的九分之一,未获奖男生有16人,未获奖男、女生人数相等,问问:有
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某市数学竞赛,共有407人参加决赛,获奖的男女生人数正好同样多,没有获奖的女生占参赛女生的9分之一,
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