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

The video tutorial explains a math problem from a 2017 exam, focusing on calculating the total number of students in a school given the ratio of boys to girls. The problem is broken down into steps: understanding the ratio, calculating the number of boys, and finding the total number of students. The tutorial also discusses the allocation of marks for each step, emphasizing the importance of correct calculations and order.

What is the ratio of boys to girls in the school?

• 4 to 5

• 2 to 3

• 3 to 4

• 5 to 4

If there are 95 girls in the school, how many boys are there?

• 85

• 76

• 95

• 80

What operation is used to find the number of boys from the given ratio?

• Addition

• Subtraction

• Multiplication

• Division

How many total students are there in the school?

• 180

• 150

• 171

• 200

How many marks are awarded for correctly solving the question?

• One mark

• Two marks

• Three marks

• Four marks