Problema Solution

Carter has an average of 80 points on 3 assignments. On his fourth assignment he needs to bring his average up to 84 points.

Answer provided by our tutors

Answer = 96. Solution: Avg = 80 = x/3 where x = 3*80 = 240. Now, New_Avg = 84 = (240 + x)/4 where x denotes the final test. And here, x = 84*4 - 240 = 96.