In a class of 60 students, 35 play cricket, 28 play football and 12 play both. How many play neither?
Sets
Original Khojo Papers practice question — not from a past board paper.
80 read at least one and 20 read neither.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
n(A ∪ B) = 60 + 50 − 30 = 80, so 100 − 80 = 20 read neither.
From the same topic and chapter, at a similar level.
In a class of 60 students, 35 play cricket, 28 play football and 12 play both. How many play neither?
Sets
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Sets
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State De Morgan's laws for sets.
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Sets
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Sets