When Jem started jogging from her home, Sonia was 1.8 km ahead. Jem jogged at 9 km/h and Sonia jogged at 6 km/h. They went in the same direction and did not change their speeds throughout.
- How far did Jem jog in 30 minutes?
- Who was ahead after 30 minutes? How far apart were they? Give your answers in this format. (Eg Ben, 1.2 km)