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1. 在以下各題中,求盈利%:
a成本=$20 , 售價=$22
b成本=$40 , 售價=$500
c成本=$128 , 售價=$256
2. 在以下各題中,求虧蝕%:
a成本=$15 , 售價=$12
b成本=$400 , 售價=$300
c成本=$256 , 售價=$128
3.小明用$ 1200買了一件外套.一年後,該外套變得不合,於是她以40%的虧蝕百分率把它賣出.售價是多少?
4.一個商人用途250000買入一輛車,以18%的盈利百分率把它售出.求售價.
★☆★☆★☆★☆★☆★☆比埋條式,答案同步驟★☆★☆★☆★☆★☆★☆
F.1數學........盈利 / 虧蝕
2006-12-19 6:27 am
回答 (3)
2006-12-19 6:03 pm
✔ 最佳答案
1a (22-20)/20x100%=2/20x100%
=10%
1b (500-40)/40x100%
=23/2x100%
=1150%
1c (256-128)/128x100%
=128/128x100%
=100%
-------------------------------------------------------------------------
2a (12-15)/15x100%
= -1/5x100%
= -20%
2b (300-400)/400x100%
= -1/4x100%
= -25%
2c (128-256)/256x100%
= -1/2x100%
= -50%
-------------------------------------------------------------------------
3 $1200x(1-40%)
=$1200x0.6
=$720
-------------------------------------------------------------------------
4 250000x(1+18%)
=250000x1.18
=295000
-------------------------------------------------------------------------
2006-12-20 1:01 am
1.a 22-20/20x100%
=2/20x100%
=10%
1.b 500-40/40x100%
=460/40x100%
=1150%
1.c 256-128/128x100%
=128/128x100%
=100%
2a. 15-12/12x100%
=3/12x100%
=25%
2b. 400-300/300x100%
=100/300x100%
=33.3333..............%
2c. 256-128/256x100%
=128/256x100%
=50%
3. 1200x(1-40%)
=1200x60%
=720
4. 250000x(100%+18%)
=250000x118%
=295000
=2/20x100%
=10%
1.b 500-40/40x100%
=460/40x100%
=1150%
1.c 256-128/128x100%
=128/128x100%
=100%
2a. 15-12/12x100%
=3/12x100%
=25%
2b. 400-300/300x100%
=100/300x100%
=33.3333..............%
2c. 256-128/256x100%
=128/256x100%
=50%
3. 1200x(1-40%)
=1200x60%
=720
4. 250000x(100%+18%)
=250000x118%
=295000
2006-12-19 6:33 am
1.a. 盈利=22-20=2, 盈利%2/20*100%=10%
1.b. 盈利=500-40=460, 盈利%460/40*100%=1150%
1.c. 盈利=256-128=1280, 盈利%128/128*100%=100%
2006-12-18 22:37:49 補充：
2.a. 虧蝕=15-12=3, 虧蝕% 3/15*100%=20%2.b. 虧蝕=400-300=100, 虧蝕% 100/400*100%=25%2.c. 虧蝕=256-128=128, 虧蝕% 128/256*100%=50%
2006-12-18 22:40:55 補充：
3. 1200*(1-40%) = 1200*60% = $7204. 250000*(1 18%) = 250000*118% = $295000
1.b. 盈利=500-40=460, 盈利%460/40*100%=1150%
1.c. 盈利=256-128=1280, 盈利%128/128*100%=100%
2006-12-18 22:37:49 補充：
2.a. 虧蝕=15-12=3, 虧蝕% 3/15*100%=20%2.b. 虧蝕=400-300=100, 虧蝕% 100/400*100%=25%2.c. 虧蝕=256-128=128, 虧蝕% 128/256*100%=50%
2006-12-18 22:40:55 補充：
3. 1200*(1-40%) = 1200*60% = $7204. 250000*(1 18%) = 250000*118% = $295000
收錄日期: 2021-04-12 22:45:55
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061218000051KK04567