“…However, to the best of our knowledge, there is no such fixed point theorem or method developed so far for the hybrid differential equations without further assumptions on the nonlinearities involved in the equations. Recently, Dhage and Jadhav [6] and Dhage and Lakshmikantham [5] have proved some basic results for the hybrid differentials equations of first order with the linear and quadratic perturbations of second type. In this paper, using the ideas from Lakshmikantham and Leela [8], Dhage [4] and Ladde et al [7], we establish some theoretical approximation results for the extremal solutions of hybrid differential equations between the given lower and upper solutions.…”