SOLUTION: I need help on this story problem. Torry took 6 tests. He had a average 97. First 5 tests had the same score. The last test had 12 points less. What was her last test score? Thank

Question 156075: I need help on this story problem. Torry took 6 tests. He had a average 97. First 5 tests had the same score. The last test had 12 points less. What was her last test score?
Thank you
Answer by orca(409) (Show Source): You can put this solution on YOUR website!
As the first 5 tests have the same score, we suppose they all scored x.
So the last test had a score of x - 12.
Thus the scores were: x, x, x, x, x, x - 12.
Their average was
As the average was 97, we have
x - 2 = 97
Solving the equation for x, we obtain:
x = 99
So the score for the first five test was 99.

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