Wayne will get $4200 if his salary is increase by 20%.Wayne's salary is 40% less the barry.Find Barry's salary.

s + 0.2s = 4200

1.2s = 4200
S = $3500 = Wayne's salary.

Barry's Salary.
s - 0.4s = 3500
0.6s = 3500
S = $5833.33 = Barry's salary.