Question 945325

a hose needs 6 hours to fill a swimming pool. another hose needs 3 hours more to fill the pool then the 2 hoses combined. how long does it take the second hose to fill a swimming pool.
<pre><font face = "Tohoma" size = 4 color = "indigo"><b>Time it takes 2nd hose, alone, to fill pool: {{{highlight_green(6)}}} hours
You can do the check!! 
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