Question

the simple interest on a sum of money is 1/9 of the principal and the number of years is equal to the rate percent per annum.
find the rate percent per annum
​

Answer 1

Answer:

3.3 %

Step-by-step explanation:

Given Simple Interest (S.I) = 1/9 Principle(P) ---(1)

&

Rate ( R) = Time period ( T )

We know that,

S.I = P*T*R/100 --------(2)

Substitute (1) in (2)

P/9 = (P * T * R)/100

Given T = R

P/9 = (P * R * R) /100

1/9 = R^2/100

100/9 = R^2

R =

$\sqrt{100 \div 9}$

R = 10/3

R = 3.3%