BP Industrial Products produces Type A dilutant. The Demand is $30$ barrels per working day, and the production rate is $50$ barrels per working day. The plant operates $250$ days per year. The EPQ has been calculated to be $170$ barrels.

$40$ BWhat is the Run Length for the BP Industrial Products?

Question $7$ options:

$4\mathrm{.}0$ Days

$7\mathrm{.}0$ days

$3\mathrm{.}4$ Days

$5\mathrm{.}2$ Days