Question
The average score received by Xandra, Pamela, Gwen and Tiffany in a recent Social Studies test was 85 marks. Xandra and Pamela both got 10e marks each while Gwen got half of Tiffany's marks. How many marks did Gwen score for the test? Express your answer in terms of e.
3 m

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The average score received by Xandra, Pamela, Gwen and Tiffany in a recent Social Studies test was 85 marks. Xandra and Pamela both got 10e marks each while Gwen got half of Tiffany's marks. How many marks did Gwen score for the test? Express your answer in terms of e.