On SI class 7

1.The money borrowed or lent or invested is called the principal.

2.The additional money given to the lender ,by the borrower,after a specific period of time is called the interest.

3.The percentage at which money is borrowed is called the rate of interest.

4.The period for which money is borrowed is called time.

5.The sum of the principal & the interest is called the amount, .   A=P+I.

6.  S.I=(P×R×T)÷100