Same chapter3 marksDifficulty: Medium
In a class of 60 students, 35 play cricket, 28 play football and 12 play both. How many play neither?
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3 marksDifficulty: Medium
If A = {1, 2, 3, 4} and B = {3, 4, 5, 6}, find A ∪ B, A ∩ B and A − B.
Original Khojo Papers practice question — not from a past board paper.
Answer
A ∪ B = {1, 2, 3, 4, 5, 6}, A ∩ B = {3, 4} and A − B = {1, 2}.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
A − B contains the elements of A that do not belong to B.
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