GMAT Problem Solving Question 01: Arithmetic sequences and identifying pattern

 
The following GMAT Problem Solving question tests your understanding of how to find the sum of an arithmetic sequence and also about observing patterns.

Question 1: If the sum of the first $100$ positive even integers is $10,100$, then what is the sum of the first $200$ positive even integers?

1. $\quad 20,100$
2. $\quad 20,200$
3. $\quad 25,100$
4. $\quad 40,100$
5. $\quad 40,200$