Question 1156544
Rate of fill using both the pipe and hose:

{{{1/15+1/22}}}

{{{(22+15)/(22*15)}}}

{{{37/330}}}{{{pools/hours}}}


How much time to fill two-fifths of the pool?
{{{(37/330)x=2/5}}}


{{{x=(2/5)(330/37)}}}{{{hours}}}
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