没获奖的作品占总数的百分之几

  • 时间:2020-06-13 17:39:14
  • 分类:数学世界
  • 阅读:173 次

没获奖的作品占总数的百分之几:参赛作品共有125幅,一等奖6幅,二等奖占总数的百分之16,三等奖比二等奖多占总数的百分之4,没获奖的作品占总数的百分之几?

这是群里一位同学问到的问题,关于百分数的应用题。说实话,算不上难题。请看下面的解答:

一等奖占总数的百分之几:6÷125=4.8%

二等奖题中直接告诉了:16%

三等奖占总数的百分之几:16%+4%=20%

把参赛总人数看作单位“1”,也就是100%,去掉一、二、三等奖所占的百分数,剩下的就是没有获奖的作品占总数的百分之几了。

1 – 4.8% – 16% – 20% =59.2%

答:没有获奖的作品占总数的59.2%。

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