CSEC Mathematics · January 2015 · Paper 2 · Question 3(a)(i)

In a survey of 30 families, the findings were that: 15 families owned dogs, 12 families owned cats, x families owned BOTH dogs and cats, 8 families owned NEITHER dogs NOR cats. Given that U = {families in the survey}, C = {families who owned cats}, D = {families who owned dogs}.

Use the given information to complete the Venn diagram below.

This question uses a figure or table from the paper — you'll see it when you practise.