Question
The average score received by Olivium, Winnie, Cathy and Tiffany in a recent Chinese test was 86 marks. Olivium and Winnie both got 11j marks each while Cathy got half of Tiffany's marks. How many marks did Cathy score for the test? Express your answer in terms of j.
3 m

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The average score received by Olivium, Winnie, Cathy and Tiffany in a recent Chinese test was 86 marks. Olivium and Winnie both got 11j marks each while Cathy got half of Tiffany's marks. How many marks did Cathy score for the test? Express your answer in terms of j.