If `A:B=3:4, B:C=8:9, C:D=15:16` then A:D is equal to ?

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

If A, B, C and D are four numbers such that A:B=2:3,B:C=4:5,C:D=5:8 , then A:D is equal to

If A:B=4:5,B:C=3:4,C:D=7:11 , then A:D is

If A:B= 2:3,B:C = 4:5 and C : D=5 :9, then A: D is equal to- यदि A:B= 2:3,B:C = 4:5 और C : D=5 :9 हो, तो A: D बराबर होगा?

If A, B, C and D are four numbers such that A : B = 2 : 3, B : C = 4 : 5, C : D = 5 : 8, then A : D is equal to

If A:B=1:2, B:C=3:4 and C:D=5:6, what is the value of A:B:C:D?