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In a class 40 students,31 play football,26play hockey and 13play volleyball.19 play football and hockey,8play both football and volley,and 7play both hockey and volleyball. Each student plays at least one of the three games.
i. Illustrate the information on a venn diagram.
ii.how many students play all three games.
iii.number of students who play at least two games.
iv.number of students who play exactly two games.