Level 2
A lorry and a bus were travelling from town A to town B which were 720 km apart. The bus set off 2 12 h later than the lorry but arrived 1 12 h earlier. If the average speed of the lorry was 60 km/h, find the average speed of the bus.
Level 2
In the figure, not drawn to scale, A is a square embedded in Square WXYZ such that CY = 13 ZY and BY = 13 XY. Express the area of A as a fraction of the area of Square WXYZ.
Level 2
In the figure, not drawn to scale, A is a square embedded in Square WXYZ such that CY = 13 ZY and BY = 13 XY. Express the area of A as a fraction of the area of Square WXYZ.