The mean score of a girl in 3 tests is 68. What should her mean score in 2 remainingtests be in order to have an overall average of 80?85939889SAMSUNG

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Answered: The mean score of a girl in 3 tests is…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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The mean score of a girl in 3 tests is 68. What should her mean score in 2 remaining tests be in order to have an overall average of 80? 85 93 98 O 89