The question is "A typical adult human lung contains about 300 million tinycavities called alveoli. Estimate the average diameter of a singlealveolus." and without further information. Is it possible to solve this problem without knowing the area(volume) of the lung? The question is "A typical adult human lung contains about 300 million tinycavities called alveoli. Estimate the average diameter of a singlealveolus." and without further information. Is it possible to solve this problem without knowing the area(volume) of the lung?