Question
The average score received by Wendy, Diana, Emma and Pamela in a recent Social Studies test was 91 marks. Wendy and Diana both got 10c marks each while Emma got half of Pamela's marks. How many marks did Emma score for the test? Express your answer in terms of c.
3 m

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The average score received by Wendy, Diana, Emma and Pamela in a recent Social Studies test was 91 marks. Wendy and Diana both got 10c marks each while Emma got half of Pamela's marks. How many marks did Emma score for the test? Express your answer in terms of c.