Question

a(:b+c)=1:3 and c:(a+b)=5:7 find b: (a+c)​

Answer 1

Answer

-3:1

Step-by-step explanation:

c:b+c=1:3

so,

3c=b+c

2c=b..........1

now,

c:a+b=5:7

so,

7c=5a+5b

putting the value of b

7c=5a+10c

5a=-3c

c=-5/3a

now we got everything in for of c so putting te values of a,b in form of c in asked eqn we will get our answer

do,

b:a+c = 2c:(-5/3c+c)

taking c common and cutting them we get

2:(-5/3+1)

we get ratio as

2:(-2/3)

-6:2

-3:1

so your answer is

-3:1

hope, you understood it.....

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