Answer:
97 points
Step-by-step explanation:
Given,
His scores, in first test = 90 points,
In second test = 82 points,
In third test = 95 points,
In fourth test = 86 points,
Let he scores x points on the fifth test,
Thus, the total sum of the scores in five tests = 90 + 82 + 95 + 86 + x
= 353 + x
Also, The Average scores in these five test = 90
We know that,
\(\text{Average score}=\frac{\text{Total sum of the scores}}{\text{Total number of tests}}\)
Here, total number of tests = 5,
\(90=\frac{353+x}{5}\)
\(450=353+x\implies x = 450-353=97\)
Hence, the lowest score he can get on the fifth test and still finish with an average score of 90 points is 97 points.
