Question 958295
Let r be the rate of work for 1 mason.
Let t be the time in hours for the 6 masons to make the wall.
Eight masons work at 8r and 6 masons work at nr, unit of WALLS per HOUR.  Your description and question focuses on just 1 wall.


{{{highlight_green(8r*5=6r*t)}}}


Most important is understand that equation.