Question

find the 11th term from last term of ap:7,12,17............ 207​

Answer 1

n=7
n+5=12
n+5(x)=207
5x=207-7
x=200/5
x=40
So the 40th term is 200
11th from the last term would be the 29th term
Therefore,
29th term=7+5(29)
=7+145
=152

Hopefully this answer is right lol

Answer 2

Answer: 11 th term from last = t11 = 157