The following geometric sequences represent the populations of two bacterial cultures at the 1-hour mark, the 2-hour mark, the 3-hour mark, and so on. Culture A starts with more bacteria, but culture B has a ratio of increase that is larger. Which culture will have the greatest population at the 18-hour mark?

Culture A: 900, 1350, 2025, 3037.5, ...
Culture B: 10, 20, 40, 80 ...

A. Culture A
B. Culture B

Question

The following geometric sequences represent the populations of two bacterial cultures at the 1-hour mark, the 2-hour mark, the 3-hour mark, and so on. Culture A starts with more bacteria, but culture B has a ratio of increase that is larger. Which culture will have the greatest population at the 18-hour mark?

Culture A:	900, 1350, 2025, 3037.5, ...
Culture B:	10, 20, 40, 80 ...

 		A.	Culture A
 		B.	Culture B