In the following block diagram G1 = 10 ; G2 = 10 ; H1 =

In the following block diagram G₁ = 10 ; G₂ = 10 ; H₁ = s + 3 and H₂ = 1.
s (s + 1)

The overall transfer function C/R is given by

Successive block diagram reduction can be

=	100
	11s² + 31s + 100

In the following block diagram G₁ =	10	; G₂ =	10	; H₁ = s + 3 and H₂ = 1.
	s		(s + 1)