SOLUTION: in an english exam the ,average marks of 19 students is 75 The average of the first 10 students is 86 and the average of the last 10?

Question 890323: in an english exam the ,average marks of 19 students is 75
The average of the first 10 students is 86 and the average of the last 10?
Answer by JulietG(1812) (Show Source): You can put this solution on YOUR website!
Are there 20 students or 19? Let's assume there are 19 and that the middle person is in both groups.
Total points = 19 * 75 = 1425
In the first ten students, 860 points are scored
Therefore, in the second ten, 1425 - 860, or 565 points are scored, an average of 56.5 points.
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