5.明明電腦用品舉行大特賣,除指定折扣外,以信用卡付款購滿1000元或以上,可獲額外的九五折優惠.下面列出了其中三款電腦用品的原價和折扣.
揚聲器一對.......原價:$188...現七五折
電腦光碟......原價:$12一盒...現買3送2
電腦顯示器......原價:$1700...現七折
5a.電腦光碟的折扣是多少?
5b.文文付150玩購買一對揚聲器,應找回多少元?
5c.鄭小姐以信用卡購買一台電腦顯示器,需付多少元?
麻煩大家啦...!!!
聽日要交啦...!!!
2007-03-01 5:47 am
回答 (2)
2007-03-01 6:05 am
✔ 最佳答案
5a.電腦光碟的折扣是:3
--------- X 100%
3+2
3
=--------- X 100%
5
3 100
=(--------- X----------- )%
5 1
3 20
=(---------- X -------------)%
1 1
=60%
=六折
5b.應找回:
150-(188x75%)
188 75
=150-(--------X--------)
1 100
188 3
=150-(--------X------)
1 4
47 3
=150-(--------X------)
1 1
=150-(47X3)
=150-141
=$9
5c.需付:
1700X70%X95%
1700 70 95
=--------X-------X-------
1 100 100
17 7 19
=-----X----X----
1 1 2
=1130.5
2007-02-28 22:08:46 補充：
唔好意思,份 數d字走了=.=自己對位行嗎?不行給我e=mail,我send你吧
參考: 自己
2007-03-01 6:27 am
a.
三盒光碟的售價 = $12 * 3 = $36
五盒光碟的售價 = $12 * 5 = $60
折扣= $60 - $36 = $24
(折扣率 = 24/60 * 100% = 40%)
b.
應找回 = $150 - $188 * 75% = $9
c.
需付 = $1700 * 70% * 95% = $1130.5
三盒光碟的售價 = $12 * 3 = $36
五盒光碟的售價 = $12 * 5 = $60
折扣= $60 - $36 = $24
(折扣率 = 24/60 * 100% = 40%)
b.
應找回 = $150 - $188 * 75% = $9
c.
需付 = $1700 * 70% * 95% = $1130.5
收錄日期: 2021-04-13 00:05:20
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070228000051KK04600