Question
At 7.20 a.m., a van started travelling at an average speed of 70 km/h. At 9.20 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 van, find the speed of the lorry.
3 m

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At 7.20 a.m., a van started travelling at an average speed of 70 km/h. At 9.20 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 van, find the speed of the lorry.