Question

$huge\bold\Without Using Formula of Compound Interest.$​

Answer 1

Step-by-step explanation:

Here,

Principal , p = Rs.20000

$r \: \: = 8 \frac{1}{2} \% = \frac{17}{2} \%$

Time , t =3 years

Amount , A =?

CI =?

We know that

A

$= (1 + \frac{r}{100} ) {}^{t}$

$= 20000(1 + \frac{ \frac{17}{2} }{100} ) {}^{3}$

$= 20000 \times (1 + \frac{17}{200} ) {}^{3}$

$= 20000 \times ( \frac{217}{200} ) {}^{3}$

$= 20000 \times \frac{217}{200} \times \frac{217}{200} \times \frac{217}{200}$

$= \frac{217 \times 217 \times 217}{400}$