If 3A = 4B = 5C, then A : B : C is equal to:
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e 20 : 15 : 12
We have given that 3A = 4B = 5C
Let C = LCM(3, 4) = 12
⇒ 3A = 4B = 60
⇒ A = 20
⇒ B = 15
⇒ A : B : C = 20 : 15 : 12