GMAT Data Sufficiency
Is 20 the average (arithmetic mean) of u,v,w, and 20?
1. u + v + w = 60
2. u - v + w = 20,u + v - w=16
- A Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
- B Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
- C BOTH statement TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
- D EACH statement ALONE is sufficient.
- E Statements (1) and (2) TOGETHER are NOT sufficient.
Correct Answer: A