It is required to find the sum of (2 + 4 + 6 + 8 +… 100).
Now, consider the series (2 + 4 + 6 + 8 +… 100).
If we take a common factor of 2 from all the terms, then,
the series becomes,
2 (1 + 2 + 3 + 4 +… 50).
So, we need to find the sum of first 50 natural numbers.
Note: