Question

1 से 50
तक सभी प्राकृतिक संख्याओं का योगफल क्या होगा​

Answer 1

Answer:

natural numbers starting from 1,2,3,4,5...,50

these are form of the AP

so, a = 1, d = 2-1= 1 & l (last term)=50 n=50

formula is sum of AP = n/2[2a+(n-1)d]

=50/2[2+49]

=25×51= 1275