Question
Isabella started travelling at 6 a.m. at a speed of 88 km/h towards a town. Riordan started travelling towards the town from the same place 3 hours later. When Isabella reached the town at 4 p.m., Riordan had another 180 km to travel. What was Riordan's average speed?
3 m

Click button first when a symbol is required. X

Isabella started travelling at 6 a.m. at a speed of 88 km/h towards a town. Riordan started travelling towards the town from the same place 3 hours later. When Isabella reached the town at 4 p.m., Riordan had another 180 km to travel. What was Riordan's average speed?