In the following items, each passage consists of six sentences. The first sentence (S1) and the final sentence (S6) are given. The middle four sentences in each have been removed and jumbled up. These are labelled P, Q, R and S. You are required to find out the proper sequence of the four sentences and mark accordingly on the Answer Sheet. 

S1: Get hold of the catalogues of the colleges in the United States. 
P: I think there is a common feature and that every course given has a similar aim. 
Q: Is there any common feature in these courses ?
R: You will find courses in innumerable
S: Is there any aim which all of. them have? 
S6: They all aim at the first rate.