原计划五年级修复多少本

  • 时间:2020-05-31 15:09:42
  • 分类:数学世界
  • 阅读:88 次

“雪域情缘”同学在QQ群中提问:有道比例应用题帮我解下,谢谢 !学校把修补图书的任务按5:3分给五年级和六年级,六年级实际修了216本,超过了原分配任务的20%,原计划五年级修复多少本?

数学题解答:先根据“六年级实际修了216本,超过了原分配任务的20%”算出六年级的原分配任务是多少本?
216÷(1+20%)=180(本)

再根据“按5:3分给五年级和六年级”中的份数算出五年级的原分配任务是多少本?
180÷3×5=300(本)答:原计划五年级修复300本。

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