A batsman makes a score of 87 runs in the 17th inning and thus increases his average by 3. Find his average after 17th inning.
40
39
52
55
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2
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3
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The average of runs scored by a cricketer in his 99 innings is 99. How many runs will he have to score to his 100th innings so that his average of runs in 100 innings will become 100 ?
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4
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5
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6
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7
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8
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The mean of 100 observations was calculated as 40. It was founder later on that one of the observation was misread as 83 instead of 53. The correct mean is :
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9
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10
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The average of 6 observations is 45.5. If one new observation is added to the previous observations, then the new average becomes 47. The new observation is :
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