If Ryan and Smith car ratio is 5:8. Ryan bought 6 new car and Smith bought 2 new car. Now,Smith has 18 car.what is their car ratio now?
Choose the correct choice from the following answers.
A) 5 : 4	B) 3 : 2	C) 8 : 9	D) 6 : 5	E) 7 : 5

Rationale: current no . of smith car = 8 x + 2 = 18,8 x = 16 , x = 2 . current car ratio = 10 + 6 / 18 = 16 / 18 = 8 : 9 . answer c
Answer: C