Question

Peace's average score on 5 tests was 88. If she dropped her lowest score, her average would be 90. What is her lowest score?

Answer 1

Her lowest score was 80.

Explanation:

5 x 88 = 440

4 x 90 = 360

An equation we can use to find her lowest score:

Let x represent her lowest score

440 - x = 360

440 - 360 = x

x= 80