The pump shown in Fig. $7\mathrm{.}19$ is delivering hydraulic oil with a specific gravity of $0\mathrm{.}85$ at a rate of $75\frac{L}{m}in.$ The pressure at $A$ is $-20$kPa and the pressure at $B$ is $275$kPa. The energy loss in the system is $2\mathrm{.}5$ times the velocity head in the discharge pipe. Calculate the power delivered by the pump to the oil.