Question 924686
RT=V, rate time quantity of tank or pool, "VOLUME", in this case 1 volume.
Combined rate for all routes working simultaneously is the sum of the rates through all of the routes.


Let x be the time for the slower pipe to fill pool.


RATES
Fast Pipe, {{{(1.5)(1/x)=(3/2)(1/x)=3/(2x)}}}
Slow Pipe, {{{1/x}}}
Both Pipes, {{{1/6}}}


{{{highlight_green(3/(2x)+1/x=1/6)}}}