As shown in figure given below, a house has a composite wall made of wood, fiberglass insulation and plasterboard. The convective heat transter coefficients ore $h_0=60\frac{w}{m^2}k$ and $h_i=30\frac{}{m^2}k$ on a chilly vinter day. The total orea of the wall surfaces is $350m^2.$ Find out how much heat is lost werall through the wall.

$($Fiberglass insulation, $k_6=0\mathrm{.}038$ wlm$.$k; Plywood siding, $k_s=0\mathrm{.}12$ wlurk Plasterboard, $k_p=0\mathrm{.}17$ W$/$m$.$k$)$