If 2a=5b=4c,find a:b:c.
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2007-11-14 4:28 am
回答 (3)
2007-11-14 4:39 am
✔ 最佳答案
2a = 5ba/b = 5/2
∴a:b = 5:2
5b = 4c
b/c = 4/5
∴b:c = 4:5
a:b
b:c
= 5:2
4:5
∴a:b:c = 20:8:10
= 10:4:5
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2007-11-14 4:44 am
先找出佢地LCM(最少公陪數): 20
再睇佢地乘幾多會=20
2*10=20, 5*4=20, 4*5=20
所以a係10, b係4, c係5
ratio = 10:4:5
再睇佢地乘幾多會=20
2*10=20, 5*4=20, 4*5=20
所以a係10, b係4, c係5
ratio = 10:4:5
2007-11-14 4:34 am
好似係2:5:4
收錄日期: 2021-04-24 07:54:46
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071113000051KK03393