Question 764320
{{{(5*18+g)/6=12}}}, find g.


Why would a grandfather, of expected age ABOVE 30, make a decrease of the average age for the group when the average age without grandfather is already younger?  The problem description just makes no realistic sense.


{{{(5*18+g)/6=12}}}
{{{5*18+g=6*12}}}
{{{g=6*12-5*18=2*3*2*2*3-5*2*3*3=2*2*2*3*3-2*3*3*5}}}
{{{g=2*3*3(4-5)<0}}}
The problem description is wrong.