Given, Average salary of 60 workers = ₹ 29900
Total salary of 60 workers
=29900×60 =₹1794000 Two officer get ₹ 90000 each.
Total salary of 2 officers
=2×90000=₹180000 Average salary of 8 supervisors
= ₹ 65000 Total salary of 8 supervisors
=8×65000 =₹520000 Total salary of 10 employees
=180000+520000 =₹700000 Total remaining salary of 50 employees
=1794000−700000 = ₹ 1094000 ∴ Average salary of 50 employee
= =₹21880