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13, In a class of 50 students, every student plays |football or cricket. If 32 of them play football Iand 35 play cricket, then find the numbersof students who play both the games and onlyfootball. (50a-za ca ab

Answer»

By properties of Venn diagram,n(AUB) = n(A)+n(B)-n(A intersection B)50=32+35+xx=17So, 17 students play both the games.



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