SOLUTION: Two sections of a class took the same quiz. Section A had 10 students who had a mean score of 80, and Section B had 20 students who had a mean score of 90. Overall, what was the me

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Question 350617: Two sections of a class took the same quiz. Section A had 10 students who had a mean score of 80, and Section B had 20 students who had a mean score of 90. Overall, what was the mean score for all of the students on the quiz? Round to the closest hundredth.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
For A:
A%2F10=80
A=800
.
.
.
For B:
B%2F20=90
B=1800
.
.
.
So the average for both combined would be