Question
At 8.50 a.m., a bus started travelling at an average speed of 60 km/h. At 10.50 a.m., a lorry started from the same place travelling on the same road. If the lorry took 4 hours to catch up with the bus, find the speed of the lorry.
3 m

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At 8.50 a.m., a bus started travelling at an average speed of 60 km/h. At 10.50 a.m., a lorry started from the same place travelling on the same road. If the lorry took 4 hours to catch up with the bus, find the speed of the lorry.