In a juice bar, there are 15 different fruit juices and n n\,n different mix-ins. A customer can choose one fruit juice and one mix-in for their drink. Casey says there are 190 different ways to choose a juice and a mix-in.
Could Casey be correct? You must show your working.
Practise Edexcel GCSE Maths The Product Rule for Counting with exam-style questions for Foundation and Higher tier. 68 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.