A : B = 3 : 4, B : C = 6 : 7, C : D = 14 : 15. What is the ratio A : D?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 3 : 5.
A : B = 3 : 4 = 18 : 24
B : C = 6 : 7 = 24 : 28
C : D = 14 : 15 = 28 : 30
A : B : C : D = 18 : 24 : 28 : 30
⇒ A : D = 18 : 30 = 3 : 5