JAMB and WAEC Mathematics questions: Sets

46 questions with answers and explanations. Tap an option to check yourself.

1. Question 41· Sets· WAEC

   In a Venn diagram of sets A and B, the region outside both circles represents

   • AA ∪ B
   • BA ∩ B
   • C(A ∪ B)′
   • DA′ ∩ B

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2. Question 42· Sets· JAMB

   If P = {x : 2 < x ≤ 9, x is a prime number}, list the elements of P.

   • A{3, 5, 7}
   • B{2, 3, 5, 7}
   • C{3, 5, 7, 9}
   • D{5, 7}

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3. Question 43· Sets· WAEC

   A set has 5 elements. How many proper subsets does it have?

   • A25
   • B32
   • C31
   • D10

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4. Question 44· Sets· JAMB

   If A = {1, 2, 3, 4} and B = {3, 4, 5}, find A ∩ B′ (the elements of A that are not in B).

   • A{5}
   • B{1, 2}
   • C{3, 4}
   • D{1, 2, 5}

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5. Question 45· Sets· WAEC

   A is a subset of B, n(A) = 7 and n(B) = 15. Find n(A ∪ B).

   • A8
   • B22
   • C7
   • D15

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6. Question 46· Sets· WAEC

   If U = {a, b, c, d, e} and A = {a, c, e}, find A′.

   • A{b, d}
   • B{a, c, e}
   • C{b, c, d}
   • D{ }

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