Question
City Z and City A were 640 km apart. At 10.30 a.m., Parry set off from City Z travelling at 66 km/h towards City A, while Jan set off from City A travelling towards City Z. They met on their way at 3.30 p.m. Find Jan's average speed.
3 m

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City Z and City A were 640 km apart. At 10.30 a.m., Parry set off from City Z travelling at 66 km/h towards City A, while Jan set off from City A travelling towards City Z. They met on their way at 3.30 p.m. Find Jan's average speed.