Question 1126584
16 hours to fill a swimming pool using a small hose a large hose is connected to a different supply can fill the same in 72 hours.
 The small hose is turned on at 8:00am and the owner turns on the large hose at 10 am.
 Both hoses run from 10:00am to 3:00pm what percentage of the pool is filled by 3 pm. 
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From the information given we know:
 the small hose ran for 7 hrs
 the large hose ran for 5 hrs
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let the full pool = 1
Find the fraction of the pool filled
{{{5/72}}} + {{{7/16}}} = 
the common denominator will be 144
{{{10/144}}} + {{{63/144}}} = {{{73/144}}} * 100 ~ 51% filled by 3 PM
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Replacing 72 hrs with 12 hrs
Find the fraction of the pool filled
{{{5/12}}} + {{{7/16}}} = 
the common denominator will be 48
{{{20/48}}} + {{{21/48}}} = {{{41/48}}} * 100 ~ 85% filled by 3 PM
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