Question

1) Principal = 62,500, rate = 12% p.a., time = 2 1/2 year and find amount ​

Answer 1

Answer:

Given:

⇒ Principal amount (P) = Rs. 62,500

⇒ Rate (r) = 12%

⇒ Time (n) = 2 years 6 months

To Find:

⇒ Amount

Formula used:

$\sf{\implies Amount = P\Bigg(1+\dfrac{r}{100}\Bigg)^{n}}$

Now, put the values in the formula, we get

$\sf{\implies Amount = P\Bigg(1+\dfrac{r}{100}\Bigg)^{n}}$

$\sf{\implies Amount = 62500\Bigg(1+\dfrac{12}{100}\Bigg)^{2}\times \Bigg(1+\dfrac{1/2 \times 12}{100}\Bigg)}$

$\sf{\implies Amount = 62500\Bigg(\dfrac{100+12}{100}\Bigg)^{2}\times \Bigg(\dfrac{100+6}{100}\Bigg)}$

$\sf{\implies Amount = 62500\Bigg(\dfrac{112}{100}\Bigg)^{2} \times \Bigg(\dfrac{106}{100}\Bigg)}$

$\sf{\implies Amount = 62500\times \dfrac{112}{100}\times \dfrac{112}{100}\times \dfrac{106}{100}}$

$\sf{\implies Amount = 62500 \times 1.12 \times 1.12\times 1.06}$

$\sf{\implies Amount = Rs.\;83104}$

$\large{\boxed{\boxed{\red{\sf{Hence,\;Amount=Rs.\;83104}}}}}$

Answer 2

Answer:

Step-by-step explanation:

principle=62500Rs

time =2.5years

rate of interest =12%

I=PTR/100

=62500*1*12/100

=7500

A=P+I

=62500+7500

=70000

this will be our new principle

Again

I=PTR/100

=70000*12*1/100

=8400

again A=P+I

A=8400+70000

=78400

this will be our new principle

so I=PTR/100

=78400*6/12*12/100

=4704

A=P+I

=78400+4704

=83104rs

so he has to pay 83104 at the end