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The Quest for 700: Weekly GMAT Challenge

Each week Integrated Learning posts a 700 level GMAT question on our blog and follows up with the answer the next day. Are you up for the challenge?

A jar has 10 marbles, either black or white.  2 marbles are randomly chosen simultaneously from the jar.  If q is the probability that both will be black , is q > 1/3?

1)  Less than ½ of the marbles in the jar are white.
2)  The probability that 1 white marble and 1 black marble will be chosen together is 7/15.

Integrated Learning  provides professional, experienced GMAT tutors throughout the United States.




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