Question 1
4 tests have an average mark of 32. 3 of them are 26, 31, 38. What is the last mark?
Find a missing value when the average is known
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Question 2
4 tests have an average mark of 28. 3 of them are 24, 27, 32. What is the last mark?
Question 3
4 tests have an average mark of 10. 3 of them are 16, 7, 4. What is the last mark?
Topic quiz
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