Question

9. if the simple interest of the sum in 1/3 years of the sum is 3 years , find the rate of interest
per annum.​

Answer 1

Answer:

the answer is downwards

Step-by-step explanation:

Time = 3 years

SI = 1/3 of the sum

To find:

The rate of interest.

Solution:

The simple interest on any principal is given by:

SI = \frac{PRT}{100}SI=100PRT

So in the question SI = P/3

Put it in the formula,

\frac{P}{3} = \frac{PR.3}{100}3P=100PR.3

\frac{1}{3} = \frac{R.3}{100}31=100R.3

\frac{100}{9} = R9100=R

R = 11\frac{1}{9}%R=1191 %

So the rate of the interest will be R = 11\frac{1}{9}%R=1191 %.