A club bowling team has 12 members. The first ten members bowl a game, and their average score is 156. If you know the next two members bowl scores of 173 and 151, do you have enough information to find the total of all 12 scores? (A) Yes, the total is 157. (B) Yes, the total is 1872. (C) Yes, the total is 1884. (D) No, we would need to know the ten individual scores. (E) No, we would need to know the standard deviation.

Ali, Ben and Calvin divided some stickers among themselves. Ali took 20 stickers and 1/5 of the remaining stickers. Next, Ben took 1/6 of the remaining stickers and 30 more. Finally Calvin took the 240 stickers that were left over. (a) How many stickers did Ben take? (b) How many stickers were there in total at first?

Professor Hermann gives his class 12 potential test questions, he will then put 5 of the 12 questions on the real test. In how many ways can Professor Hermann make up the test?