Algebra Q#34
0. The difference between CI and SI on 8000 Rs for 2 yr is 20 Rs. Find the rate of interest.
- Option : A
- Explanation : Here, P = 8000 Rs, x = 20 Rs.
p= x(100/r)2
⇒8000 = 20(100/r)2
400 = 1002 /r2 .
r2 = (100 x 100)/400 = 25.
r = 5% per annum
