" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a=102
b=3
Un = a+(n-1)b
198 = 102 + 3b-3
198 = 99 + 3b
198 - 99 = 3b
99 = 3b
b=33
Sn = n/2 (a+Un)
S33 = 33/2 (102+198)
= 16.5(300) = 4950