Question

if the simple interest on sum of money is 1/3 of the sum in 3 yrs find the rate of interest​

Answer 1

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=

100

PRT

So in the question SI = P/3

Put it in the formula,

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

3

P

=

100

PR.3

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

3

1

=

100

R.3

\frac{100}{9} = R

9

100

=R

R = 11\frac{1}{9}%R=11

9

1

%

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

9

1

%.