1.若以$31680賣出1輛電單車,其虧蝕百分率是12%.若以$29520賣出電單車,求新的虧蝕百分率
2.某人以$150買入1件折扣率為40%的毛衣,求這件毛衣的標價
3.一個標價$1200的MP3機,係大減價中以$960賣出,求折扣百分率
幫幫手THX
幾題數學問題,中二
2009-04-18 11:47 pm
回答 (3)
2009-04-19 12:09 am
1.成本=31680(1-12%)
=$36000
新虧蝕=36000-29520
=6480
新的虧蝕=6480/36000 x100%
=18%
2.毛衣的標價=150(1-40%)
=$250
3.折扣=1200-960
=$240
折扣百分率=240/1200 x100%
=20%
=$36000
新虧蝕=36000-29520
=6480
新的虧蝕=6480/36000 x100%
=18%
2.毛衣的標價=150(1-40%)
=$250
3.折扣=1200-960
=$240
折扣百分率=240/1200 x100%
=20%
2009-04-19 12:06 am
1. 31680/(1-12%)
=31680/88%
=$36000
(36000-29520)/36000x100%
=6480/36000x100%
=18%
2. 150/(1-40%)
=150/60%
=$250
3. (1200-960)/1200x100%
=240/1200x100%
=20%
=31680/88%
=$36000
(36000-29520)/36000x100%
=6480/36000x100%
=18%
2. 150/(1-40%)
=150/60%
=$250
3. (1200-960)/1200x100%
=240/1200x100%
=20%
參考: me
2009-04-19 12:01 am
這是你要的答案:
1) 18%
2) $210
3) 20%
1) 18%
2) $210
3) 20%
收錄日期: 2021-04-23 20:39:58
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090418000051KK01243