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29 January, 05:01

After four test Trudy's average score was 85. If her score is 90 on the fifth test, what will be her average for all five tests?

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  1. 29 January, 06:51
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    86

    Step-by-step explanation:

    Add first 4 test scores 4 x 85 = 340

    Ad fifth test 340 + 90 = 430

    430/5 = 86
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