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by LoopyRider
Mon Feb 16, 2009 11:04 pm
Forum: Arithmetic
Topic: 35 juniors averaged 80, 15 seniors averaged 70; find overall
Replies: 1
Views: 2441

35 juniors averaged 80, 15 seniors averaged 70; find overall

A total of 50 juniors and seniors were given a mathematics test. The 35 juniors attained an average score of 80 while the 15 seniors attained an average of 70. What was the average score for all 50 students who took the test?

How do you do this exactly?
by LoopyRider
Thu Feb 12, 2009 12:09 am
Forum: Arithmetic
Topic: Do I simplify the fractions in parenthesis?
Replies: 1
Views: 6565

Do I simplify the fractions in parenthesis?

This problem
1/2 + (fraction divided by another fraction) - (two other fractions added together) = ?

After dividing and adding the two fractions in each parenthesis.
Do I simplify the fractions in the parenthesis before continuing? Or?

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