In the sequence 1, 3, 5, 7, 9, 11, how many times does the number 6 occur?

B. 0

In the sequence 2, 4, 6, 8, 10, 12, how many even numbers are there?

B. 6

Alice is ranked 5th from the top and 6th from the bottom in a competition. How many participants are there in total?

B. 11

In the sequence 5, 10, 15, 20, 25, 30, how many times does the number 15 occur?

A. 1

B is ranked 5th from the bottom in a group of 25 people. If B swaps positions with C, who is ranked 12th from the top, what will be B's new rank from the top?

C. 13TH