In an orchard, 132.4 kg of pears are picked by the evening. Over the next hour, 4 workers add 3 kg 500 g of pears each, and 7 workers remove 3.1 kg of bad fruits each. What is the total weight of pears remaining?
Three classes will go the book fair at Seletar. 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 ?