$-$Calculate the power required per meter of stream width to pass a lubricating oil Distance between the plates, $6$ mm

Oil flow rate per meter of width, $100$ m$3/$h Oil viscosity, $25$ cP

Density of oil, $0\mathrm{.}88$ g$/$cm$3$

Plate length, $3$ m

Assume that the plates are very wide compared to the distance between them and the end effects are negligible.

$-$ Make a small diagram.

$[$I have found $2$ answers: a$)3215\mathrm{.}03$ watts and b$)267\mathrm{.}846$ watts. Which one is correct?$]$