SOLUTION: Average for 15 students is 80, one more student joins in average turns to 81 what was his grade?

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Question 1016850: Average for 15 students is 80, one more student joins in average turns to 81 what was his grade?
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
Hi there,
Average for 15 students is 80
Therefore total marks were 15 x 80 = 1200
One more student joins making the average
81.
Therefore total marks became 16 x 81 = 1296
So, new student's grade was 1296 - 1200 = 96
Hope this helps :-)