Question 1137731
Fill Rate of Inlet, {{{1/10}}}

Fill Rate of Outlet, {{{-1/20}}}

(Outlet drains the vat; it does not fill the vat.)


Both Pipes at the same time:
{{{1/10+(-1/20)}}}


{{{1/10-1/20}}}


{{{2/20-1/20}}}


{{{1/20}}}


20 hours to fill, both pipes open