Mathematics · Averages

The average of 30 observations is 60. The average of the first 15 observations is 62 and the average of the last 16 observations is 55. What is the value of the 15th observation?

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The average of 30 observations is 60. The average of the first 15 observations is 62 and the average of the last 16 observations is 55. What is the value of the 15th observation?

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The average of 30 observations is 60. The average of the first 15 observations is 62 and the average of the last 16 observations is 55. What is the value of the 15th observation?

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