Question
The average score received by Yen, Gem, Xylium and Roshel in a recent Chinese test was 61 marks. Yen and Gem both got 10c marks each while Xylium got half of Roshel's marks. How many marks did Xylium score for the test? Express your answer in terms of c.
3 m

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The average score received by Yen, Gem, Xylium and Roshel in a recent Chinese test was 61 marks. Yen and Gem both got 10c marks each while Xylium got half of Roshel's marks. How many marks did Xylium score for the test? Express your answer in terms of c.