Higher November 2017 Paper 2 Q15

EdexcelCurrent spec3 marksCombinations

15 Tracey is going to choose a main course and a dessert in a cafe.
She can choose from 8 main courses and 7 desserts.

Tracey says that to work out the number of different ways of choosing a main course and a dessert you add 8 and 7

(a) Is Tracey correct?
You must give a reason for your answer. (1)

12 teams play in a competition.
Each team plays each other team exactly once.

(b) Work out the total number of games played. (2)