Mr Idris has 5 pairs of trousers, 9 shirts and 4 ties.
Work out the total number of ways of choosing a pair of trousers, a shirt and a tie.
Hence, work out the total number of ways of choosing a pair of trousers, a shirt and two different ties.
181 exam-style questions on Eduqas GCSE Maths The Product Rule for Counting. Each one has a worked solution and a mark scheme showing where the marks go.