If X 1 Z Are In Ap And X 2 Z Are In Gp The X 4 Z Will Be In (1) A.P (2) G.P (3) H.P (4) None of these Solution: Given x, 1, z are in AP. So 2 = x+z …(i) x, 2, z are in GP. So 4 = xz …(ii)... View Article