Question
Here are the marks of a student in four exams. 65807669 The student takes a fifth exam. His mean mark for the five exams is
Here are the marks of a student in four exams.
65807669
The student takes a fifth exam. His mean mark for the five exams is 70
Work out his mark in the fifth exam.
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Advanced Engineering Mathematics
Authors: Dennis G Zill
6th Edition
1284105970, 9781284105971
