When Sophia started jogging from her home, Della was 0.7 km ahead. Sophia jogged at 10 km/h and Della jogged at 6 km/h. They went in the same direction and did not change their speeds throughout.
- How far did Sophia 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)