Three posters cost $9.60. At that rate, how many posters can you buy for $48?
A) 5 posters
B) 15 posters
C) 16 posters
D) 153 posters

Correct answer is B. Wht u got to do is is find out how much is one posters ( 9.60 / 3 = 3.20) and times it by all the answer choices til u c which one end up to the right answer. :P