數學測驗有50題，明明答對了35題，答對的題目比答錯的多百分之幾??
急!!!
數學問題--百分數
2006-12-08 7:24 am
回答 (5)
2006-12-08 7:27 am
✔ 最佳答案
(35-15)/15 * 100 %= 133%
2006-12-08 7:49 am
[35-(50-15)]
--------------- x100%=
50
(35-15)
----------- x100%=
50
20
-----x100%=
50
40%
--------------- x100%=
50
(35-15)
----------- x100%=
50
20
-----x100%=
50
40%
2006-12-08 7:32 am
35/50-(50-35)/50*100%
=40%
=40%
2006-12-08 7:30 am
35-(50-35)/50x100%
=15/50x100%
=0.3x100%
=30%
=15/50x100%
=0.3x100%
=30%
2006-12-08 7:28 am
35/50 - (50-35)/50
= (35-15)/50
=20/50
=2/5
= 40%
= (35-15)/50
=20/50
=2/5
= 40%
收錄日期: 2021-04-12 19:10:04
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061207000051KK05290