Total number of employees in 2003 = Employees of (Production deptt.+ Sales deptt.+ Procurement deptt.+ Administration & Accounts deptt. + Research & Development deptt.)
Total number of employees in 2003 =150 + 25 + 50 + 45 + 75 = 345
Total number of employees in 2005 = (Production deptt.+ Sales deptt.+ Procurement deptt.+ Administration & Accounts deptt.+ Research & Development deptt.)
Total number of employees in 2005 = 450 + 65 + 30 + 90+ 73 = 708
Hence, it was the year 2005 when total number of employees in the factory became nearly double the total number of employees working in the factory during 2003.