Question

If A:B= 3:5 and B:C=4:7 find A:B:C​

Answer 1

Answer:

12:20:35

Step-by-step explanation:

The Best way to do is shifting method

A : B : C

3    5   -

-     4   7

Now use shifting method

3 5 →5

4 ←4   7

Do product vertically

3*4 = 12

5*4 = 20

5*7 = 35

12:20:35

Answer 2

A:B=3:5

B:C=4:7

let B=(4×5)x=20x

so,A:B=3×4x:20x=12x:20x

B:C=20x:(7×4)x=20x:28

So A:B:C=12x:20x:28x=12:20:28