Answer:
5050
Step-by-step explanation:
We use the ecuation:
[tex]S=\frac{n(n+1)}{2}[/tex]
Where:
S = Addition of the numers since 1 even n
n = Final number
In this case n = 100, then
[tex]S = \frac{100*(100+1)}{2} = 5050[/tex]
