Last year a group of 48 students enrolled in Mathematic, French, and Physics. Some students were more successful than others:   –32 passed French, 27 passed Physics, and 33 passed Mathematics;   –26 passed French and Mathematics, 26 passed Physics and Mathematics, and 21 passed French and Physics;   –21 passed French, Mathematics, and Physics. How many students passed one or more of the subject?   Please write clearly thank you.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Last year a group of 48 students enrolled in Mathematic, French, and Physics. Some students were more successful than others:
 
–32 passed French, 27 passed Physics, and 33 passed Mathematics;
 
–26 passed French and Mathematics, 26 passed Physics and Mathematics, and 21 passed French and Physics;
 
–21 passed French, Mathematics, and Physics.
How many students passed one or more of the subject?
 
Please write clearly thank you. 
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