Question

9. If A:B = 2:3, B:C = 3:5and C:D = 9:11 Find A:B:C:D.?
a)54:81:135:156 b)54:81:135:165
c)54:18:135:165 d) Data inadequate​

Answer 1

Step-by-step explanation:

Given a:b=2:3,b:c=3:5,c:d=9:11

a:b=2×27:3×27=54:81

b:c=3×27:5×27=81:135

c:d=5×27:11×27=135:165 or 156

so,a:b:c:d=option a or b

hope it will help a little bit.

Answer 2

a optiion is correct after solved