Question

If 2A = 3B and 4B = 5C, then A : C is ?

• A. 3 : 4
• B. 8 : 15
• C. 15 : 8
• D. 4 : 3

Answer 1

Answer:

C. 15 : 8

2A = 3B and 4B = 5C ⇒ 8A = 12B and 12B = 15C ⇒ 8A = 12B = 15C = x A = x/8 B = x/12 C = x/15 A : C = x/8 : x/15 = 15 : 8