GMAT Data Sufficiency
The sum of positive integers x and y is 77. What is the value of xy?
(1) x = y + 1
(2) x and y have the same tens digit.
- 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: D