Question 176040
large hose is 1/4 of the tank per minute
small hose is 1/6 of the tank per minute
:
together they can do:
:
{{{((1/4)+(1/6))t=1}}}(job)
:
{{{((6/24)+(4/24))t=1}}}
:
{{{(10/24)t=1}}}
:
{{{(5/12)t=1}}}
:
{{{highlight(t=12/5)}}} minutes
:
so 2.4 minutes