Question 1130086
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Use the proportion


{{{27/(5*1)}}} = {{{x/(15*((2/3)))}}}.     (*)


In this proportion,  {{{2/3}}} represent 40 minutes as  {{{2/3}}}  of an hour,

and the proportion itself says that the rate of job of each man in one hour is the same in both cases.


Simplify (*)


{{{27/5}}} = {{{(3x)/(15*2)}}},   or   {{{27/5}}} = {{{x/10}}},


and then get final answer  x =  {{{(27*10)/5}}} = 27*2 = 54.     <U>ANSWER</U>
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Solved.