SOLUTION: The average test mark for class of 20 students is 65. Peter's mark was recorded as 54 instead of 55. What is the correct average mark for the test

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Question 1086319: The average test mark for class of 20 students is 65. Peter's mark was recorded as 54 instead of 55. What is the correct average mark for the test


Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
T%2F20=65
T=1300
So the total of all 20 students' scores is 1300. It should be 1301.
So then,
A=1301%2F20
A=65.05
Not much change.