S = {1, 2, 3, 4, 5, 6}, T = {2,4,5,7} and R = {1,4, 5}, and (S∩T) ∪ R

  • A {1, 4, 5}
  • B {2, 4, 5}
  • C {1, 2, 4, 5}
  • D {2, 3, 4, 5}
  • E {1, 2, 3, 4, 5}
waec 1993mathematics

The correct answer is C. {1, 2, 4, 5}

S = {1, 2, 3, 4, 5, 6};  T = {2, 4, 5, 7}; R = {1, 4, 5}

(S∩T) ∪ R = {2, 4, 5}  ∪ {1, 4, 5}

= {1, 2, 4, 5}

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