There are 30 students in a class. A teacher needs to choose two students to represent the class at a meeting.
How many different pairs of students could the teacher choose?
Practise OCR GCSE Maths The Product Rule for Counting with exam-style questions for Foundation and Higher tier. 68 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers 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.