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June 30, 2015

Homework Help: math

Posted by math student on Saturday, September 14, 2013 at 2:54pm.

In a survey of 150 students, 90 were taking algebra, and 30 taking biology.

a. what is the least number of students who could have been taking both classes?

b. what is the greatest number of students who could be taking both courses?

c. what is the greatest number of student who could have been taking neither courses?

Please explain.

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