Mathematics, 31.03.2021 17:40, lol6998

Paulo got these markers in three tests: 72, 80 and 82. He had one more test to sit. He wanted an average of 80 for the four tests. What mark must he get in the fourth test?
78
80
86

Answers: 1

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Paulo got these markers in three tests: 72, 80 and 82. He had one more test to sit. He wanted an av...