Question

A. P. 22,26,30,.... के कितने पदों का योग 400 है? ​

Answer 1

Answer:

attachment please mark as brainlist

Answer 2

Answer:

Step-by-step explanation:

a=22,

d=26-22=4

Sn=400

n=?

सूत्र द्वारा Sn=2a+(n-1)d,

400=2*22+(n-1)4

=400=44+4n-4

=400=40+4n

400-40=4n

360/4=n

n=90

Hope it helped!