Why rule of nominal account is exactly opposite with the rule of personal and real account?

real accounts are tha will always show up on a company's balance sheet, they show assets, liabilities and owner's equity.

nominal accounts are used during an accounting period, they are reported on the Income statement. 

both of them used in financial transactions, when the latter is recorded in the Double-entry bookkeeping system ( Assets + Expenses = Liabilities + Capital + Revenue).

when, A+L=C and R-E= Profit

I agree with Mr. B ALI  answer>>>>>>>

I agree with Mr. Bilawal Ali answers

becouse they compitaion with each other