Question
The average score received by Tiffany, Min, Sarah and Roshel in a recent History test was 71 marks. Tiffany and Min both got 10p marks each while Sarah got half of Roshel's marks. How many marks did Sarah score for the test? Express your answer in terms of p.
3 m

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The average score received by Tiffany, Min, Sarah and Roshel in a recent History test was 71 marks. Tiffany and Min both got 10p marks each while Sarah got half of Roshel's marks. How many marks did Sarah score for the test? Express your answer in terms of p.