A clothing store sells 9 different styles of T-shirts and h h\,h different styles of hats. A customer chooses one T-shirt and one hat to buy. Alex says there are 110 different ways of choosing a T-shirt and a hat.
Could Alex be correct? You must show your working.
68 exam-style questions on Edexcel GCSE Maths The Product Rule for Counting. Each one has a worked solution and a mark scheme showing where the marks go.