Mathematics 0580 · IGCSE · Sets

Sets — practice question

$C = \{x : x \text{ is an integer and } 5 \le x \le 12\}$ together with $D = \{5, 10\}$.

(a)[1]

Circle the correct statement from the list below: $D = \varnothing$, $C \cap D = \{10\}$, $6 \in D$, $D \subset C$.

(b)[1]

Find the value of $n(C \cup D)$.

Worked solution & mark scheme

This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Hence, $C \cap D = \{10\}$.” …