Question
A lorry and a Ferrari were travelling from Town M to Town N which were 495 km apart. The Ferrari set off 245 h later than the lorry but arrived 115 h earlier. If the average speed of the lorry was 55 km/h, find the average speed of the Ferrari.
2 m

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A lorry and a Ferrari were travelling from Town M to Town N which were 495 km apart. The Ferrari set off 245 h later than the lorry but arrived 115 h earlier. If the average speed of the lorry was 55 km/h, find the average speed of the Ferrari.