Speed, distance, time and work rate: watch it solved step by step

Find speed, distance or time with units that match, and how long workers take on a job together. Level: KS3 / GCSE. Type any problem of this kind and the Lab works it out and animates every move, with a plain-words explanation of why.

Worked example: speed 60 km/h for 3 hours, how far?

1. Understanding the problem. Speed, distance and time are linked by one relationship. Write down what is known and what is asked.
2. The formula. Distance is how far, speed is how fast, time is how long. Cover the one you want in the triangle D / (S × T) to see its formula.
3. Choose the method. Speed and time are known and distance is asked, so use distance = speed × time.
4. Substitute. Put the values in.
5. Calculate. Multiply to find the answer.
6. What we learned. Speed, distance and time are one idea in three forms. Faster speed in the same time means a longer distance.

Answer: 180 km

Practise speed, distance, time and work rate with problems the Lab marks for you.