Series : CAP, AXL, YUH, WRD, ? The pattern followed in each letters of the terms is : 1st letter : C (-2 letters) = A (-2 letters) = Y (-2 letters) = W (-2 letters) = U 2nd letter : A (-3 letters) = X (-3 letters) = U (-3 letters) = R (-3 letters) = O 3rd letter : P (-4 letters) = L (-4 letters) = H (-4 letters) = D (-4 letters) = Z Thus, missing term = UOZ