Product rule for counting - GCSE maths

#3minutemaths #SimonDeaconmaths
- stop the video
- work through the questions
- compare your solutions

Here's the questions:
1. There are 14 boys and 12 girls in a class. One boy and one girl will be asked to represent the school at a local council meeting.
Work out the total number of ways to choose a boy and a girl.
2. There are x boys and 15 girls in a cooking competition. One boy and one girl will be chosen to demonstrate how to cook an omelette. There are 165 different ways of choosing a boy and a girl.
Show that this could be correct.
3. There is a choice of 5 starters, 9 main courses and 6 deserts at Ida’s restaurant.
Work out the total number of ways of choosing a starter, a main course and a desert.
4. There is a choice of 7 cakes and x hot drinks at Papa Joe's American Diner. Rohan says there are 82 ways to choose a cake and a hot drink.
Could Rohan be correct?
You must show your working.

I hope the video helps and please do leave a comment - thanks!

Join this channel to get access to get your name mentioned in a maths problem!

Visit @Simon Deacon for a full range of quick reminder and GCSE maths walkthrough videos.

HERE'S SOME PLAYLISTS THAT MIGHT BE USEFUL:

... AND HERE'S SOME POPULAR TOPIC VIDEOS AIMED AT AROUND GRADE 5:

MOST OF THE VIDEOS & QUESTION PAPERS HAVE BEEN POSTED TO:

or click here for a limited 50% discount!:

The course contains around 3 hours of video, quizzes and a copy of my book 'How to get an A in maths.' All the way through to GCSE and just in time for revision.

Visit playlists to help you get more from your studies

GCSE - everything you need to know to get great grades

How to solve linear equations

.. and many more.