Sn = 2 + 6+ 10+ 14 + 18 + 22 + 26+ 30+ 34 + 38
Sn = 38 +34 +30 + 26 +22 + 18 +14 +10 +6 +2
2Sn = 40 + 40 + 40 + 40 + 40 +40 +40 +40 +40 +40
2Sn = 40(10)
2Sn = 400
Sn = 400/2
Sn = 200.
But if you wanted to ask the same question as to the page where your link points to then,
No you cannot make 100 by taking any 5 numbers from the list of given numbers.