in a class of 45 students, 30 students play cricket and 20 play hockey. If each student plays atleast one of the two games, how many students play both cricket and hockey?
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5 students play both cricket and hockey
n(A)+n(B)-n(A intersection B)=n(A union B)
n(A)+n(B)-n(A intersection B)=n(A union B)
saleem1926:
can you elaborate it
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