Question
A lorry and a Porsche were travelling from Town J to Town K which were 768 km apart. The Porsche set off 223 h later than the lorry but arrived 113 h earlier. If the average speed of the lorry was 64 km/h, find the average speed of the Porsche.
2 m

Click button first when a symbol is required. X

A lorry and a Porsche were travelling from Town J to Town K which were 768 km apart. The Porsche set off 223 h later than the lorry but arrived 113 h earlier. If the average speed of the lorry was 64 km/h, find the average speed of the Porsche.