How many numbers between 200 and 400 begin or end with 2?	Answers.
A) 20  B) 60  C) 100  D) 110  E) 120
How many numbers between 200 and 400 begin or end with 2?   Just think that those numbers are:   i) The ones ending in 2: 202, 212, 222, ... , 392 --&gt; 20 numbers   ii) The ones beginning in 3: 200, 201, 202, 203, ... , 293, ... , 299 --&gt; 100 numbers   BUT 10 out of the first 20 numbers are repeated in the second set.   THEREFORE, the solution is 110 numbers.   Answer: 110
<result>D</result>
How many numbers between 200 and 400 begin or end with 2?