Question

Kavitha invested a sum at a certain rate of Compound Interest. She received an interest of Rs. 1,800 at the end of the 1st year and an interest of Rs. 1,980 at the end of the 2nd year. What is the sum (in Rs.) invested by Kavitha?

Answer 1

sum(money kavitha invested is) =18000

interest rate is= 10%

Step-by-step explanation:

1st year interest is 1800 2nd year interest is 1980

diff 2nd - 1st year interest= 1980-1800= 180

hence

if 18000

and interest is 10 per annum

then in first year total interest is 1800

and 2nd year total interest is 1800+180=1980