Given that the a.p s,q,r,14 find the value of q,r

2 answers

If the 1st term of an A.P Is 6and the 4th term is 12, find the common difference
knowing only the 4th term does not allow you to know any of the others.
assuming a typo, and that "s" was supposed to be 5, then 3d = 14-5

3d = 12-6