Answer:
Sr. No Particulars Debit Credit
Given
1 Work in Process Inventory 20,000 Dr
 Cash 20,000 Cr
2 Manufacturing Overhead 8,500 Dr 
 Cash 8,500 Cr
3 Wages Expense 108,000 Dr
 Cash 108,000 Cr
Required 
1. Work in Process Inventory 20,000 Dr
 Materials 20,000 Cr
2. Selling (Salaries) Expenses 8,500 Dr 
 Cash 8,500 Cr
3. Wages Expense 108,000 Dr
 Payroll Taxes 16,200 Cr
 Cash 91 800 Cr 
Rectified Entries Would be  
1 Materials 20,000 Dr
 Accounts Payable 20,000 Cr
 As there is no record of payment for material
 Cash 20,000 Dr
 Materials 20,000 Cr
Materials will be credited as they have been put to work in process and cash will be debited to counter the effect of the original entry.
2. Cash 8500 Dr
 Manufacturing Overhead 8500 Cr
The original entry will be reversed to counter its effect and a new correct entry will be passed. 
 Selling (Salaries) Expenses 8,500 
 Cash 8,500
3. Cash 16,200 Dr
 Payroll Taxes 16,200 Cr
Cash will be debited with an amount equal to payroll taxes and payroll taxes will be credited to complete the original entry.