If the fourth term of a H.P is 1/3 and 7th term is 1/4, then 16th term is

If the fourth term of a H.P is (1)/(3) and 7 th term is (1)/(4), then 16 th term is (A) (1)/(5) (B) (1)/(6)(C)(1)/(7)(D)(1)/(8)

If the 10th term of a G.P. is 9 and 4th term is 4, then its 7th term is :

If the 5th term of a G.P. is 16 and the 10th term is 1/2 then its 15th term is

If p th term of a H.P is qr and q^(th) term is r p then r^(th) term is

If the 20th term of a H.P. is 1 and the 30th term is -1/17, then find its largest term.