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On his first three tests, Alan scored 76, 89, and 92. What score must he get on his fourth test to have an average of 80 for all four tests?
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On his first three tests, Alan scored 76, 89, and 92. What score must he get on his fourth test to have an average of 80 for all four tests?

User Rgamber
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He must get 63 on his fourth test
On his first three tests, Alan scored 76, 89, and 92. What score must he get on his-example-1
User Jordi Corominas
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