Question

You are studying for your final exam of the semester. Up to this point you recived 3 exam scores of 99%, 80% and 70%. To revive a grade of B in the class you must have an average score between 80% and 89% for all exams including the final. Find the widest range of scores that you can get on the final exam in order to recive a grade of b in the class.

A: 62,100
B: 71,100
C: 74,97

Answer 1

80*4 =320

89*4 =356

all 4 grades need to add to those totals

99+80+70 =249

320-249 =71

356-249=107

since you cant get a 107

since 71 is the lowest grade you can get the range is 71,100