Math CentralQuandaries & Queries


Question from Kieran, a student:


I was wondering if you could help me with this question! Thank you

A man travels a total of 8km in 6 hours

if his speed was xkm/4hours in the first stage then his speed was 8-x/2hours in the second part.

If the average speed for the first leg of the journey was 1.1km/h faster than the second part: find x


On the first stage he travelled x km in 4 hours sp that's x/4 km per hour.

On the second stage he travelled 8 - x km in 2 hours sp that's (8 - x)/2 km per hour.

x/4 is 1.1 larger than (8 - x)/2. Solve for x.


About Math Central


Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.
Quandaries & Queries page Home page University of Regina PIMS