Question
A bus and a Porsche were travelling from Town G to Town H which were 660 km apart. The Porsche set off 312 h later than the bus but arrived 212 h earlier. If the average speed of the bus was 55 km/h, find the average speed of the Porsche.
2 m

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A bus and a Porsche were travelling from Town G to Town H which were 660 km apart. The Porsche set off 312 h later than the bus but arrived 212 h earlier. If the average speed of the bus was 55 km/h, find the average speed of the Porsche.