Question 4 Enter your answer as an integer or a decimal in the answer box. Backspace to erase.
收藏
笔记
反馈
我的笔记
5000
保存
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
In a certain state, each license plate consists of either three digits (between 0 and 9, inclusive) followed by two letters or three letters followed by two digits. For example, 055-XY, 123-PP, and AAA-70 are all acceptable plates. How many different license plates can the state issue?
_____

我的答案: