Question

if A:B=3:4,B:C=5:7,C:D=8:9 find A:B:C:D

Answer 1

If A : B = 3 : 4, B : C = 5 : 7 and C : D = 8 : 9 then A : D is equal to:

First Published: July 11, 2016 | Last Updated:July 11, 2016

If A : B = 3 : 4, B : C = 5 : 7 and C : D = 8 : 9 then A : D is equal to
[A]10 : 21
[B]21 : 10
[C]3 : 7
[D]7 : 3

10 : 21