Question

In this class, tests are 50% of your grade, homework is 30% of your grade, test reviews are 5% of your grade, and the final exam is 15% of your grade. At the end of the semester, your test average is 55, your homework average is 95, and your review average is 73. What score do you need on the final to get a C (72%) in the class? (Round your answer to 2 decimal places.)

Answer 1

Weighted average = Sum of {Score x Corresponding weightage}

Here, to get C grade, let the final grade required be F

Given weighter average required to get C = 72

Therefore,

72 = 55x0.5 + 95x0.30 + 73x0.05 + Fx0.15

72 = 59.65 + 0.15F

F = 82.33

Score you need on the final to get a C in the class = 82.33