Question
The average score received by Vanessa, Sarah, Barbara and Betty in a recent Mathematics test was 68 marks. Vanessa and Sarah both got 11c marks each while Barbara got half of Betty's marks. How many marks did Barbara score for the test? Express your answer in terms of c.
3 m

Click button first when a symbol is required. X

The average score received by Vanessa, Sarah, Barbara and Betty in a recent Mathematics test was 68 marks. Vanessa and Sarah both got 11c marks each while Barbara got half of Betty's marks. How many marks did Barbara score for the test? Express your answer in terms of c.