Question
The average score received by Erika, Xuan, Pamela and Eva in a recent Mathematics test was 79 marks. Erika and Xuan both got 10j marks each while Pamela got half of Eva's marks. How many marks did Pamela score for the test? Express your answer in terms of j.
3 m

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The average score received by Erika, Xuan, Pamela and Eva in a recent Mathematics test was 79 marks. Erika and Xuan both got 10j marks each while Pamela got half of Eva's marks. How many marks did Pamela score for the test? Express your answer in terms of j.