Question
At 8.49 a.m., a lorry started travelling at an average speed of 72 km/h. At 9.49 a.m., a convertible started from the same place travelling on the same road. If the convertible took 4 hours to catch up with the lorry, find the speed of the convertible.
3 m

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At 8.49 a.m., a lorry started travelling at an average speed of 72 km/h. At 9.49 a.m., a convertible started from the same place travelling on the same road. If the convertible took 4 hours to catch up with the lorry, find the speed of the convertible.