Question

1+4+7+.... x =925 find x

Answer 1

here is your answer friend.

Answer 2

its in AP ,
its first term is a=1..
and common difference is d=3..
then, nth term will be the number...
so, n/2(2a+(n-1)d)=925
=>n/2(2+(n-1)3)=925
=>n=150/6 =25
therefore, x=a+(n-1)d
= 1+(25-1)3
=73
is the answer...