Question

Jake's final grade in his science class is calculated by finding the mean of his scores for six project reports. The score Jake received on his first five reports are 66,80,88,82, and 72.
What is the lowest-possible score jake can earn his last report in order to have at least an 80 for his final grade?

Answer 1

Let lowest possible score be x (66+ 80+ 88+ 82 +72+ x)/6=80 on solving we get ans as 92