4/9 P = (P*R*R)/100
R = 20/3 = 6 2/3%
The simple interest on a sum of money is 4/9 of the principal and the number of years is equal to the rate percent. Find the rate and the time?
Options:
A: 6 2/3%
B: 6 2/8%
C: 7 2/3%
D: 6 5/3%
E: 4 2/3%