PRINCIPAL The money borrowed by a borrower from a lender is known as the principal or sum.

The extra money paid by a borrower for using another person's money is called ______.

INTEREST The additional money paid by the borrower to the lender for having used his money is called the interest.

The money poid to the money lender which includes the interest and the principal is called ___________.

A borrowed Rs 830 from B at 12% S.l. for 3 years. He then added some more money to the borrowed sum and lend it to C for the same period at 14% p.a. rate of interest. If A gains Rs. 93.90 in the transaction, then the money he added from his side is: