Question
Gillian left home at 11.20 a.m. and drove towards the province. 2 hours later, her older sister left their home and drove towards the same province at 82 km/h. When the older sister reached the province at 5.20 p.m., Gillian had another 4 km to travel. What was Gillian’s average speed? Express your answer in mixed number.
3 m

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Gillian left home at 11.20 a.m. and drove towards the province. 2 hours later, her older sister left their home and drove towards the same province at 82 km/h. When the older sister reached the province at 5.20 p.m., Gillian had another 4 km to travel. What was Gillian’s average speed? Express your answer in mixed number.