Raeann left home at 10.15 a.m. and drove towards the town. 3 hours later, her older sister left their home and drove towards the same town at 94 km/h. When the older sister reached the town at 6.15 p.m., Raeann had another 2 km to travel. What was Raeann’s average speed? Express your answer in mixed number.
Time that the Raeann's older sister started driving = 1.15 p.m.
Duration that Raeann's older sister drove from 1.15 p.m. to 6.15 p.m. = 5 h

Distance that Raeann's older sister travelled
= 5 x 94
= 470 km

Distance that Raeann travelled by the time her older sister reached the city
= 470 - 2
= 468 km

Time that Raeann took to travel 468 km = 8 h

Raeann's average speed
= 468 ÷ 8
= 58¹₂ km/h

Answer(s): 58¹₂ km/h