Answer:
402
Step-by-step explanation:
First, we reverse the list to become 3,8...1998,2003,2008. Then we add 2 to each number to get 5, 10..... 2000, 2005, 2010. Finally we divide each number by 5 to get 1, 2,..... 400, 401, 402, so there are 402 numbers in total.
