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

The video tutorial explains how to calculate the percentage of people under 25 in a company with a given ratio of men to women. It breaks down the problem into steps, calculating the percentage of men and women under 25 separately, then combines these to find the overall percentage. The tutorial also discusses the allocation of marks for each step in the calculation process.

What is the ratio of men to women in the company?

• 1 to 1

• 4 to 3

• 3 to 2

• 2 to 3

What percentage of men in the company are under the age of 25?

• 50%

• 60%

• 40%

• 30%

How do you calculate the number of men under 25 if the total number of men is represented by 3?

• Multiply 3 by 0.3

• Multiply 3 by 0.4

• Multiply 3 by 0.5

• Multiply 3 by 0.1

What is the total proportion of people under 25 in the company?

• 1.0 out of 5

• 1.2 out of 5

• 1.6 out of 5

• 1.4 out of 5

What is the final percentage of all people in the company under the age of 25?

• 30%

• 28%

• 25%

• 32%