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

The video tutorial explains how to solve a distance, speed, and time problem by calculating the maximum possible speed. It involves understanding and applying the concepts of upper and lower bounds to determine if Kirstie's average speed could have exceeded 80 km/h. The tutorial provides a step-by-step method to convert units and perform calculations, emphasizing the importance of careful computation to avoid errors.

What are the upper and lower bounds for the distance Kirsty drove?

How do you convert seconds into hours for calculating speed?

What was the final conclusion about Kirsty's average speed compared to the speed limit?