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Jane played 10 computer games. Her average score was 304.
After her 11th game, her average was 310.
What was Jane's score in her 11th game?
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Her total scores after 10 games was 304*10 = 3040.
Her total scores after 11 games was 310*11 = 3410.
Her score in her 11th game was this difference 3410 - 3040 = 370. ANSWER
Solved.
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