百分率的計算

2006-11-16 2:22 am
(橫式,答案)
1.)超級市場有椰子雪糕46盒,昨天賣去了23盒。賣去的佔百分之幾?
2.)永玉的數學練習簿有24頁,現在她已用了18頁。餘下的佔百分之幾?
3.)本月爸爸的交通費上升了20%。本月的交通費是上月的百分之幾?
4.)李伯把每月薪金的70%用隹屋租和家用,餘下的儲蓄起來。儲蓄的佔百分之幾?
5.)一盒清涼茶有250毫升,永正一口氣喝了60%。他喝了多少毫升?
6.)木屋區有居民240户,搬走了25%後,還餘多少户?

回答 (7)

2006-11-16 2:35 am
✔ 最佳答案
1. 23/46=1/2=50%
2. (24-18)/24=1/4=25%
3. 1+20%=6/5=120%
4. 1-70%=3/10=30%
5. 250x60%=150
6. 240x(1-25%)=180
參考: 自己
2006-11-16 2:38 am
1.(23/46) X100%
=50%
2.[(24-18)/24] X100%
=25%
3.唔知

4.1-70%
=30%
5.250 X 60%
=150 ml
6. 240 X (1-25%)
=180
2006-11-16 2:31 am
1.)23/46x100%

2.)24-18/24x100%

3.)100/120

4.)100%-70%/100

2006-11-15 18:32:44 補充:
5.)250 X 60% = 1506. )240 - (240 X 25%) = 240 - 60 = 180

2006-11-15 18:34:05 補充:
1.)50%2.)25%3.)120%4.)30%
2006-11-16 2:30 am
1)(23/46)100%=50%
2)[(24-18)/24]100%=25%
3)?
4)?
5)?
6)?

2006-11-15 18:31:21 補充:
1. 23/46 X 100% = 50%2. 6/24 X 100% =25%3. 120/100 X100% = 120%4. 100% -70% =30%5. 250 X 60% = 1506. 240 - (240 X 25%) = 240 - 60 = 180
2006-11-16 2:30 am
1. 23/46 X 100% = 50%
2. 6/24 X 100% =25%
3. 120/100 X100% = 120%
4. 100% -70% =30%
5. 250 X 60% = 150
6. 240 - (240 X 25%) = 240 - 60 = 180
2006-11-16 2:30 am
1. (46-23)/46=1/2
2. (24-18)/24=1/4
3. (100%+20%)=120%
4. (100%-70%)=30%
5. 250x60%=150
6. 240x(1-25%)=180

2006-11-15 18:31:12 補充:
1. (46-23)/46=1/2=50%2. (24-18)/24=1/4=25%3. (100%+20%)=120%4. (100%-70%)=30%5. 250x60%=1506. 240x(1-25%)=180
2006-11-16 2:28 am
1. 23/46 * 100% = 50%
2. (24-18)/24 * 100% = 25%
3. 120%
4. 30%
5. 250 * 60%= 150mL
6. 240 * (1-25%) = 180户


收錄日期: 2021-04-12 23:08:02
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061115000051KK02707

檢視 Wayback Machine 備份