GCSE Secondary Maths Age 13-17 - Ratio, Proportion & Rates of Change: Ratio - Explained

The video tutorial explains how to solve a problem involving the sale of 80 books, divided into fiction and nonfiction categories with a 3:1 ratio. Each book is priced at £10, but nonfiction books are sold at half price. The tutorial guides through calculating the number of each type of book, determining the total revenue from sales, and understanding the marks allocation for the problem. The focus is on careful reading, extracting information, and performing straightforward calculations.

What is the ratio of fiction books to non-fiction books that Helen has?

• 1 to 3

• 4 to 1

• 2 to 1

• 3 to 1

How many fiction books does Helen have if the total number of books is 80?

• 20

• 40

• 60

• 80

What is the price of each non-fiction book after the discount?

• £2.50

• £5

• £7.50

• £10

How much total revenue does Helen earn from selling all the fiction books?

• £600

• £500

• £400

• £300

What is the total revenue from selling all the non-fiction books?

• £50

• £150

• £100

• £200

What is the total amount of money Helen receives from selling all the books?

• £500

• £600

• £700

• £800

How many marks are allocated for finding the total revenue from fiction and non-fiction books?

• 4 marks

• 2 marks

• 3 marks

• 1 mark