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

A. 1

In the sequence 1, 3, 5, 7, 9, 11, how many times does the number 4 occur?

A. 0

In the sequence 100, 200, 300, 400, 500, how many times does the number 600 occur?

A. 0

In the sequence 10, 20, 30, 40, 50, how many numbers are less than 40?

B. 3

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

A. 1