GMAT Data Sufficiency
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Source: GWD
Level: 3
If r, s, and w are positive numbers such that w = 60r + 80s and r + s = 1, is w ＜ 70?
(1)r ＞ 0.5
(2)r ＞ s
- 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.