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

B. 0

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

A. 1

In the sequence 1, 4, 7, 10, 13, 16, how many times does the number 7 occur?

B. 1

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

B. 0

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

A. 1