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# Earlier average of a game played is 869. You played 10 games

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Manager
Joined: 21 Mar 2007
Posts: 50
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Kudos [?]: 3 [0], given: 0

Earlier average of a game played is 869. You played 10 games [#permalink]  27 Apr 2007, 09:15
Earlier average of a game played is 869. You played 10 games and the current average is 855. What is your 10 game average?
Manager
Joined: 02 Jan 2007
Posts: 208
Followers: 2

Kudos [?]: 3 [0], given: 0

[#permalink]  27 Apr 2007, 09:46
864.6 provided the game was only played once before the 10 recent games. If thats true, then it easy. Do this:
(869 + 10x)/11 = 865

If there were more than 1 game played then we have insufficient information.

This would make for a good DS question or a deadly PS question if the answer choices included 864.6 & None of the above.
[#permalink] 27 Apr 2007, 09:46
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# Earlier average of a game played is 869. You played 10 games

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