Question

The simple interest on a sum of money is 25% of the principal and the number of year is equal to the rate percent per annum. Find one rate.

Answer 1

si =25%*p

rate =term=t

from si= ptr/100

term = rate = 5

Answer 2

Answer: 5%

Step-by-step explanation:

As given, simple interest(SI) is 25% of principal(P) and number of year(T) is equal to the rate(R) of percent.

Therefore

SI = 25  % of P

T = R

As we know $SI =\dfrac{P\times R\times T}{100}$

So we have

$25\% \text { of } P = \dfrac{P\times R\times R}{100} \\\\\Rightarrow\dfrac{25}{100} \times P= \dfrac{P\rimes R^2}{100} \\\\\Rightarrow R^2 = 25 \\\\\Rightarrow R=5$

Hence, Rate is 5 %