A single$-$phase $50-$kVA, $2400/240-$volt, $60-$Hz distribution transformer is used as a step$-$down transformer at the load end of a $2400-$volt feeder whose series impedance is $1\mathrm{.}0+$ j$2\mathrm{.}0$ ohms. The equivalent series impedance of the transformer is $1\mathrm{.}0+$ j$2\mathrm{.}5$ ohms referred to the high$-$voltage $($primary$)$ side. The transformer is delivering rated load at $0\mathrm{.}8$ power factor lagging and at rated secondary voltage. Neglecting the transformer exciting current, determine $($a$)$ the voltage at the transformer primary terminals, $($b$)$ the voltage at the sending end of the feeder, and $($c$)$ the real and reactive power delivered to the sending end of the feeder.