Question
The average score received by Jane, Shiyun, Olivium and Dana in a recent Mathematics test was 91 marks. Jane and Shiyun both got 10g marks each while Olivium got half of Dana's marks. How many marks did Olivium score for the test? Express your answer in terms of g.
3 m

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The average score received by Jane, Shiyun, Olivium and Dana in a recent Mathematics test was 91 marks. Jane and Shiyun both got 10g marks each while Olivium got half of Dana's marks. How many marks did Olivium score for the test? Express your answer in terms of g.