The average weight of 11 players is 72 kg. If the coach's weight is excluded, the average decreases by 1 kg. What is the weight of the coach?

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**Solution:**

1. Total weight of 11 players = $11	imes72=792$ kg.
2. New average without coach = $72-1=71$ kg, so total of 10 players = $10	imes71=710$ kg.
3. Coach's weight = $792-710=82$ kg.

FINAL_ANSWER: b

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