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Mary and Joe are to throw three dice each. The score is the

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Senior Manager
Joined: 06 Apr 2008
Posts: 401
Mary and Joe are to throw three dice each. The score is the [#permalink]

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15 Aug 2008, 02:32
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Mary and Joe are to throw three dice each. The score is the sum of points on all three dice. If Mary scores 10 in her attempt what is the probability that Joe will outscore Mary in his?

24/64

32/64

36/64

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42/64
Director
Joined: 27 May 2008
Posts: 539

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15 Aug 2008, 02:37
nmohindru wrote:
Mary and Joe are to throw three dice each. The score is the sum of points on all three dice. If Mary scores 10 in her attempt what is the probability that Joe will outscore Mary in his?

24/64

32/64

36/64

40/64

42/64

refer this 7-t67177
interesting discussion
Manager
Joined: 14 Jul 2008
Posts: 95
Schools: HBS, Stanford.

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15 Aug 2008, 10:00
this is tough one. too tough for gmat i think.

what is OA and source?
_________________

I did it all for the Starwood points.

Senior Manager
Joined: 06 Apr 2008
Posts: 401

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15 Aug 2008, 23:46
PatrickBateman wrote:
this is tough one. too tough for gmat i think.

what is OA and source?

OA is B)

Source is gmatclub tests
Re: Probability   [#permalink] 15 Aug 2008, 23:46
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Mary and Joe are to throw three dice each. The score is the

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