GMAT Data Sufficiency Practice Test 2 — Flashcards | GMAT | FatSkills

GMAT Data Sufficiency Practice Test 2 — Flashcards

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An urn contains 15 marbles, all identical except for color. Each marble is either black, green, or red. What is the probability of drawing a black or red marble when a single marble is drawn at random from the urn? (1)The number of red marbles is 2. (2)The number of green marbles is 5.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
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