SOLUTION: A class of 19 students had an average on a mathematics test of 90 points. The 12 girls in the class scored 1,317 points. How many points did the 7 boys score?

Question 735601: A class of 19 students had an average on a mathematics test of 90 points. The 12 girls in the class scored 1,317 points. How many points did the 7 boys score?
Found 2 solutions by lynnlo, MathTherapy:
Answer by lynnlo(4176) (Show Source): You can put this solution on YOUR website!
12 girls points======12*1,317=15,804
7 boys points========x
x-15,804========14,487
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!

A class of 19 students had an average on a mathematics test of 90 points. The 12 girls in the class scored 1,317 points. How many points did the 7 boys score?

Since there were 19 students, then total amount of points scored = 19 * 90, or 1,710

Since the girls scored 1,317 of the 1,710 points, then the boys scored 1,710 � 1,317, or points.

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