Question

the simple interest on a sum of money from 5 years is is 3/5 of the sum find the rate percentage per annum​

Answer 1

Answer:

Step-by-step explanation:

let principal be p

then si =3/5p

si=p*r*t/100

3/5p=pr*1/100

3/5=r/100

r=3*100/5

r=60%

Answer 2

In context of question asked,

We have to determine the rate percentage per annum.

As per question,

It is given that,

The simple interest on a sum of money for 5 years is 3/5 of the principal.

So, let the principal = Rs. P

Time period = 5 years

Rate percentage = r%

SI = $\frac{3}{5}P$

As we know that,

$SI = \frac{PRT}{100}\\=>\frac{3}{5}P = \frac{P\times R \times 5}{100}\\=>\frac{3}{5} = \frac{5R}{100}\\=>R=\frac{3\times 100}{5\times 5}\\=>R=12\%$

Hence, required rate percentage will be 12%.