Question: 1. A bat and a ball cast $1.10 cents in total. The bat costs one dollar more than the ball. How much does the ball cost? 2. If five machines made five gadgets in five minutes, how much time would it take for 100 machines to make 100 gadgets? 3. The was a lake, it was full with lily pads, each day the lily pads doubled in size, it took 48 days for the lily pads to cover all of the lake how long would it take for the lily pads to cover half of the lake?
Answer: 1. 5 cents 2. 5 minutes 3. 47 days
Question: You have a glass of water that looks about half full. How can you tell, only using the glass of water itself, if the glass is half full or not?
The glass is a right cylinder.
Answer: Tip the glass of water until the water reaches the rim of the glass and if the water lines up perfectly with the bottom rim of the glass, it is half full.