Final answer:
The value of n is 15.
Step-by-step explanation:
To find the value of n, we need to use the formula
m + n = sum of scores
From the given information, we know that m = 5 and the sum of scores is 20. Substituting these values into the formula, we have:
5 + n = 20
Subtracting 5 from both sides of the equation, we get:
n = 15
Therefore, the value of n is 15.