Question

if A:B= 5:7 And B:C=3:7 find A:B:C

​

Answer 1

Answer:

A:B=5:7

and B:C=3:7

here they both contain B as common

there for we will make them equal

in AB ratio we multiply 7 by 3

And in BC ratio we multiply 3 by 7

we get

A:B=15:21

&B:C=21:49

then ratio of A:B:C=15:21:49