Question
The average score received by Hazel, Lucy, Marion and Gem in a recent Science test was 79 marks. Hazel and Lucy both got 11f marks each while Marion got half of Gem's marks. How many marks did Marion score for the test? Express your answer in terms of f.
3 m

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The average score received by Hazel, Lucy, Marion and Gem in a recent Science test was 79 marks. Hazel and Lucy both got 11f marks each while Marion got half of Gem's marks. How many marks did Marion score for the test? Express your answer in terms of f.