Question

If A:B=3:5 and B:C=4:7,find A:B:C​

Answer 1

Answer:

A: B = 3: 5

Now divide by 5=

5

3

: 1

Similarly B: C = 4: 7

Now divide by 4= 1:

4

7

So we get A: B: C =

5

3

:1:

4

7

Multiplying by 5×4=20

A:B:C=12:20:35