What must he average on the last three tests to have at least an average of 94?

Question

to make an a in class colin must have at least an average of 94. on the first three test he has an average of 91. what must he average on the last three tests to have at least an average of 94?

Answer 1

Colin needs a total of 564 points (6 x 94).

From the first three he has 273 (3 x 91).

He must score 291 (564 - 273) points on the last three.

291 / 3 = 97

 

Colin's last three test must average 97.