Question

In how many years will sum of money get simple interest equal to itself at 25% per annum simple interest?

Answer 1

In 4 year the total cash will be equal to its 25%per annual simple interest

Answer 2

$\underline{\bold{\textsf{Question:}}}$

In how many years will sum of money get simple interest equal to itself at 25% per annum simple interest ?

$\underline{\bold{\textsf{Solution:}}}$

$\bold{\textsf{Let the principle be Rs. x }}$

According to question ,

• Its simple interest = $\bold{\textsf{Rs.x}}$.

Given :

• Rate = 8 % per annum.

We know that ,

$\bold{SI =\frac{ Principle *Time*Rate}{100}}$

$\bold{Time=\frac{SI*100}{Principle*Rate}}$

$\bold{=\frac{x*100}{x*25} }\\\\=\bold{ \frac{100}{25} }\\\\= \bold{4\quad{years.}}$

$\bold{\boxed{\textsf{Time = 4 years.}}}$