Question

Let A = {x : x is a natural number <11}
B = {x : x is an even number and 1 < x < 21}
C = { x : x is an integer and 15 ≤ x ≤ 25}
(i) List the elements of A, B, C
(ii) Find n(A), n(B), n(C)

Answer 1

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