There are 3 numbers A, B and C. If A:B = 3/4, B:C = 4/5, C:D = 5/6, then A:C will be?  Choose the correct answer:
A) 1 : 2
B) 3 : 5
C) 5 : 7
D) 6 : 11
E) 5 : 3
Sol. A : B = 3 : 4, B : C = 4 : 5, C : D = 5 : 6   ∴A∶B∶C∶D= 3 : 4 : 5 : 6.   Thus, A : C = 3 : 5   3 : 5
<result>B</result>
There are 3 numbers A, B and C. If A:B = 3/4, B:C = 4/5, C:D = 5/6, then A:C will be?