Train length

5
0
4
0
3
0
2
0
1
0
0
Rate this resource

In this resource the time is given for a train to pass a signal. The time is also given for a train to completely pass through a tunnel. It is assumed that the train is travelling at constant speed. The task is to calculate the length of the train.

Solving the problem requires the use of the formula for speed, along with some algebraic manipulation of fractions.

The ‘something in common’ between each of the 16 examples is that the length of the train is always half the length of the tunnel. Looking at the mathematics behind why this is so involves using algebraic fractions and factorisation.

Show health and safety information

Please be aware that resources have been published on the website in the form that they were originally supplied. This means that procedures reflect general practice and standards applicable at the time resources were produced and cannot be assumed to be acceptable today. Website users are fully responsible for ensuring that any activity, including practical work, which they carry out is in accordance with current regulations related to health and safety and that an appropriate risk assessment has been carried out.

Published by

    Actions

    Share this resource