A college survey was taken to determine where students study. Of 112 students surveyed, 66 studied in the library, 54 studied in the student union, and 23 studied in both the library and the student union.

Of those interviewed, how many did not study in either the library or the student union?

Question

A college survey was taken to determine where students study. Of 112 students surveyed, 66 studied in the library, 54 studied in the student union, and 23 studied in both the library and the student union.

Of those interviewed, how many did not study in either the library or the student union?

anonymous · Answer

|dw:1374287544867:dw|

anonymous · Answer

If you add the students who studied in the library and the students who studied in the student union, 23 students are counted twice because they studied in both places.

anonymous · Answer

I will be online for a while if you need more assistance.