asiamuhammad6
25.07.2019 •
Mathematics
In ben's class, there were five exams given throughout the semester. if the average of his first four exams was a 90, what was his average based on all five exams?
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Ответ:
Average of first four exams = 90
Therefore,
Total of first four exams = 90*4 = 360 marks
Based on 5 exams,
Average = 360/5 = 72
Ответ: