Question

a:b=5:6,b:c=9:11,find a:b:c

Answer 1

a : b = 5 : 6
b : c = 9 : 11

a : b = 15 : 18

b : c = 18 : 22 .

Now,

a : b : c = 15 : 18 : 22

Answer 2

Hey!

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a:b = 5:6
b:c= 9:11

We have to make value of 'b' equal in both cases

a:b = (5×3):(6×3)
a:b= 15:18

b:c= (9×2):(11×2)
b:c= 18:22

Now, b= 18 in both cases,
So,

a:b:c = 15:18:22


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Hope it helps...!!!