Four juice flavors—Apple, Berry, Cherry, and Dragonfruit—are being compared in a taste test. Every flavor is sampled alongside every other flavor in a series of head-to-head comparisons.
Write down all the head-to-head comparisons that will occur.
A judge must rank the four flavors from most favorite to least favorite. List all the possible rankings the judge could produce.
45 exam-style questions on WJEC GCSE Maths Systematic Listing. Each one has a worked solution and a mark scheme showing where the marks go.