(a)[2]
$2$ people buy all three items. Anyone who buys both a hat and a scarf also buys gloves. $4$ people buy exactly two items. Use this information to complete the Venn diagram.
(b)[1]
Calculate $n(S \cap (H \cup G)^{\prime})$.
Mathematics 4024 · O Level · Sets
Sets — practice question
A shop offers hats ($H$), scarves ($S$) and gloves ($G$). A set of $40$ people are asked which of these items they purchase in the shop. Part of the information is displayed in the Venn diagram.