The wall of a factory is being repainted by a group of 9 workers. If 133.1 m of the wall is already painted, and each worker can paint 1 m 400 mm of the wall every hour, what is the total length of the wall that would have been painted after an hour?
Three classes will go the book fair at Sydney. The first class will arrive at book fair at the time shown on the clock below:
Each class will spend 30 minutes at the book fair and then leave. The second class arrives at the book fair as the first class leaves, and the third class will arrive as the second class leaves. What time will it be when the third class leaves the book fair ?