Question

Pls answer seriosuly

Answer 1

4347

Explanation:

Let me have a bold guess...

The largest sum of 2 numbers chosen is 2020+2021 = 4041

The smallest sum of 2 numbers chosen is -153 + -152 = -305

Then all the possible sum must drop in between those 2 numbers

-305, -304, -303 ......,-1, 0 , 1,.... 4039, 4040, 4041:

↓ ↓ ↓

305 + 1 + 4041 = 4347

I wish this is correct ......

Answer 2

I may be wrong, I’m a little confused by the question but i think it’s 4,728,450 that is 2174 times 2175 because each number can be added with 2174 other and there are 2175 total numbers