SOLUTION: Betsy was sick, so she had to make up an exam a few days after her class took a test. Without her test score, the class average was 71. After she took the test, the class average w

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Question 1075354: Betsy was sick, so she had to make up an exam a few days after her class took a test. Without her test score, the class average was 71. After she took the test, the class average was 72. If her score was 96%, how many students were in the class?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Without her,
T%2Fn=71
T=71n
With her,
%28T%2B96%29%2F%28n%2B1%29=72
71n%2B96=72%28n%2B1%29
71n%2B96=72n%2B72
n=96-72
n=24