PQR has three interdependent plants P$,$ Q and R$.$ One shilling worth of plant P output requires Ksh$.0\mathrm{.}1,$ Ksh$.0\mathrm{.}15$ and Ksh$.0\mathrm{.}2$ from plant P$,$ Q and R$.$ One shilling worth of plant Q output requires Ksh$.0\mathrm{.}25,$ Ksh$.0\mathrm{.}15$ and Ksh$.0\mathrm{.}3$ from plant P$,$ Q and R$.$ One shilling worth of plant R output requires Ksh$.0\mathrm{.}24,$ Ksh$.0\mathrm{.}16$ and Ksh$.0\mathrm{.}16$ from plant P$,$ Q and R$.$ In the next financial year, the company plans to produce products worth Ksh$.40$ million, Ksh$.20$ million and Ksh$.50$ million for plant P$,$ Q and R respectively.

Determine the total worth of intermediate demand.