in a group of students, 50 students passed in english, 60 students passed in mathematics and 40 students passed in both the subjects.find the number of students who passed either in english or in mathematics.
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70
Step-by-step explanation:
Since, n(A∪B)=n(A)+n(B)−n(A∩B) , we have
Number of students who passed either in English or Math =50+60−40=70
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