Nicholas Mason (Manchester, UK) has the strongest lungs in the world. He blew a balloon weighing one kilogram to a diameter of [[$ 2.44 $]] meters in [[$ 45 $]] minutes and [[$ 2.5 $]] seconds in the year 1994. Calculate the volume of the balloon he formed. Suppose that the balloon is spherical.

Take a picture of your solution and return it to the submission folder.

Answer: The volume of the balloon was m[[$ ^3 $]].