in a group of students, 65 play football, 45 play hockey, 42 play cricket, 20...
in a group of students, 65 play football, 45 play hockey, 42 play cricket, 20...
in a group of students, 65 play football, 45 play hockey, 42 play cricket, 20 play football and hockey, 25 play football and cricket, 15 play hockey and cricket and 8 play all the three games. (Assume that each student in the group play at least one game).?
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