Question
Adam's exam scores are as follows:
79 English
78 Chinese
9? Math
6? Science
Adam scored an average of 78 marks for the 4 subjects.
What is the greatest possible score for Math?
3 m

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Adam's exam scores are as follows:
79 English
78 Chinese
9? Math
6? Science
Adam scored an average of 78 marks for the 4 subjects.
What is the greatest possible score for Math?