Question
The average score received by Emily, Jean, Lynn and Betty in a recent Science test was 97 marks. Emily and Jean both got 10w marks each while Lynn got half of Betty's marks. How many marks did Lynn score for the test? Express your answer in terms of w.
3 m

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The average score received by Emily, Jean, Lynn and Betty in a recent Science test was 97 marks. Emily and Jean both got 10w marks each while Lynn got half of Betty's marks. How many marks did Lynn score for the test? Express your answer in terms of w.