Average of A and B Welcome! You are encouraged to register with the site and login (for free). When you register, you support the site and your question history is saved.What is the average (arithmetic mean) of a and b?(1) The average (arithmetic mean) of and is 15.(2) The average (arithmetic mean) of a, b, and 11 is 11. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient. EACH statement ALONE is sufficient. Statements (1) and (2) TOGETHER are NOT sufficient. Review Answer