How many keystrokes are needed to type the numbers from 1 to 1500? Choose the most appropriate option: A) 2805 B) 3224 C) 3897 D) 4562 E) 4893
There are 9 one-digit numbers from 1 to 9.   There are 90 two-digit numbers from 10 to 99.   There are 900 three-digit numbers from 100 to 999.   There are 501 four-digit numbers from 1000 to 1500.   9 + 90(2) + 900(3) + 501(4) = 4893   The answer is 4893.
<result>E</result>
How many keystrokes are needed to type the numbers from 1 to 1500?