How many even numbers are there between 250 and 500?

To find the even numbers between 250 and 500, we start with the smallest even number, which is 252, and the largest even number, which is 498. This forms an arithmetic sequence where the first term is 252, the last term is 498, and the common difference is 2. The total number of terms can be calculated using the formula for the nth term of an arithmetic sequence, resulting in 124 even numbers between 250 and 500.