প্রশ্ন: A = {x ∈ N : 2 < x ≤ 12}, B = {x ∈ N : x বিজোড় এবং x ≤ 10} হলে, A ∩ B = কত?

A = {x ∈ N : 2 < x ≤ 12}
= {3, 4, 5, 6, 7, 8, 9, 10, 11, 12}

B = B = {x ∈ N : x বিজোড় এবং x ≤ 10}
= {1, 3, 5, 7, 9}

সুতরাং, A ∩ B = {3, 4, 5, 6, 7, 8, 9, 10, 11, 12} ∩ {1, 3, 5, 7, 9}
= {3, 5, 7, 9}