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Mathematics, 12.12.2019 03:31 daytonalive7193

In a group of 191 students, 10 are taking french, business and music, 36 are taking french and business, 20 are taking french and music, 18 are taking business and music, 65 are taking french, 76 are taking business, and 63 are taking music (note that each of the above groups may also take other subjects). let f, b, m be the sets of students taking at least french, business, or music, respectively (i. e. that subject and possibly, but not necessarily, others). find the number of students in the set f4b4m.

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