sum of first 3 terms of AP is 57 and sum of last 3 terms is 246 .find n if d= 7
Answers
Answered by
5
Answer:
There are total 12 terms in this A.P
Attachments:
preksha9634:
but i get 21 and my friend gets 8
why
then the right answer do you have in answer key
thanks a lot
is it correct
yes absolutely correct
ohk
Answered by
2
hey there
refer to attachment
Attachments:
thanks so much.....
ur welcome
Similar questions