Problema Solution
Jill has four of her five game scores: 8,6,6,3 Her average score for the five games is 6 points. What is the fifth game score?
Answer provided by our tutors
Let 'x' represent the fifth game score. We are looking for x, x = ?
The average score of 5 games is 6 points.
Following the definition of average score we have:
(8 + 6 + 6 + 3 + x) / 5 = 6
23 + x = 6 * 5
23 + x = 30
x = 30 - 23
x = 7
The fifth game score is 7 points.