5 men are equal to as many women as are equal to 8 boys . all of them earn $ 90 only . men ’ s wages are ?
"b $ 6 5 m = xw = 8 b 5 m + xw + 8 b - - - - - $ 90 rs . 5 m + 5 m + 5 m - - - - - $ 90 rs . 15 m - - - - - - $ 90 = > 1 m = $ 6 ."
divide(90, multiply(const_3, 5))