Question
The average score received by Shiyun, Vanessa, Irene and Nora in a recent History test was 71 marks. Shiyun and Vanessa both got 11g marks each while Irene got half of Nora's marks. How many marks did Irene score for the test? Express your answer in terms of g.
3 m

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The average score received by Shiyun, Vanessa, Irene and Nora in a recent History test was 71 marks. Shiyun and Vanessa both got 11g marks each while Irene got half of Nora's marks. How many marks did Irene score for the test? Express your answer in terms of g.