Maths - ratios :(a+b):(b+c):(c+a)=4:2:3

2007-12-24 1:16 am
Can you solve the question followings:

(a+b):(b+c):(c+a)=4:2:3, find a:b:c

Thank you very much

回答 (2)

2007-12-24 1:36 am
✔ 最佳答案
(a+b)=(b+c)+2 c=a-2
(b+c)=(c+a)-1 a=b+1
(c+a)=(a+b)-1 b=c+1

then put a=b+1 into (a+b) b=3/2
b=c+1 into (b+c) c=1/2
c=a-2 into (c+a) a=5/2

a:b:c =5/2 : 3/2 : 1/2
2007-12-24 1:33 am
a=5, b=3, c=1


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