Question

Find the sum of the three digit natural number ,which are divisible by 4​

Answer 1

Ap : 100 , 104...996

a : 100

d -: 4

an : 996

a+(n-1)d=996

100+(n-1)4=996

(n-1)4=996-100

(n-1)4=896

(n-1)=896/4

(n-1)=224

n=225