Mathematics 4024 · O Level · Sets

Sets — practice question

$\mathcal{E} = \{x \mid x \text{ is an integer}, 1 \le x \le 15\}$ $A = \{x \mid x \text{ is a multiple of } 3\}$ $B = \{x \mid x \text{ is a factor of } 30\}$
(a)[1]

Write down the members of $A$.

(b)[2]

Fill in the Venn diagram.

(c)[1]

Find the smallest value of $x$ for which $x \in (A \cup B)'$.

(d)[1]

Find the value of $n(A \cap B)'$.

Worked solution & mark scheme

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