Ravi has scored 99, 61, 71, and 83 on his previous four tests. What score does he need on his next test so that his average (mean) is 78?

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03-10-2022
Mathematics

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Ravi has scored 99, 61, 71, and 83 on his previous four tests. What score does he need on his next test so that his average (mean) is 78?

Sagot :

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Ravi has scored 99, 61, 71, and 83 on his previous four tests. What score does he need on his next test so that his average (mean) is 78?

Sagot :

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