The average mark of fourteen students in a class was 75%. Another student took a make-up test

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The average mark of fourteen students in a class was 75%. Another student took a make-up test and the class average decreased by 1%. What was the mark of the fifteenth student?

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Mathematics Of Business And Finance

ISBN: 9781927737545

4th Edition

Authors: Larry Daisley, Thambyrajah Kugathasan, Diane Huysmans

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