SOLUTION: In a class of 21 students the average score on a math test was 77%. If Suzie Smart got 95% and Jack Average got 78%, find the average grade of the other 19 students. Explain what

Click here to see ALL problems on Probability-and-statistics

Question 442449: In a class of 21 students the average score on a math test was 77%. If Suzie Smart
got 95% and Jack Average got 78%, find the average grade of the other 19 students.
Explain what you are doing to find the average of the other 19 students. The average
is 76.
Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website!
In a class of 21 students the average score on a math test was 77%.
Total "points" = 77*21 = 1617
---------------------------------
If Suzie Smart got 95% and Jack Average got 78%,
The two have 173 of the "points".
-------------------------------------
Find the average grade of the other 19 students.
The 19 students must have 1617-173 = 1444 points
There average grade = 1444/19 = 76
--------------------------------------------
Cheers,
Stan H.
====================
Explain what you are doing to find the average of the other 19 students.
The average
is 76.