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

A. 1

In a group of 50 people, Mark is ranked 22nd from the bottom. What is his rank from the top?

B. 30TH

In the sequence 12, 14, 16, 18, 20, 22, how many times does the number 20 occur?

A. 1

In the sequence 2, 4, 6, 8, 10, 12, how many times does the number 8 occur?

A. 1

In the sequence 3, 6, 9, 12, 15, 18, how many times does the number 12 occur?

A. 1