Question: Pauly is making ice cubes. He needs 10 pounds of cubes. He knows that 2 ounces of water make 1 cube and each cube weighs 1/16th of a pound. It takes him 1 hour to make 10 cubes. Every hour his ice maker run costs $1.50. Every ounce of water costs $0.10. How much will it cost to make all the ice? Think carefully first, then make a decision:
He needs 160 ice cubes because 10 / (1 / 16) = 160. It will take him 16 hours because 160 / 10 = 16. His ice maker will cost $24 to run because 16 x 1.5 = 24. He will need 320 ounce of water because 160 x 2 = 320. This will cost him $32 because 320 x .1 = 32. It will cost in total $56 to make all the ice because 24 + 32 = 56. So the answer is 56.