Question

can someone plz help me out with this sum no.(iii)​

Answer 1

$\large\underline{\sf{Solution-}}$

It is provided that .

Principal, p = Rs 10000

Rate, r = 10 % per annum

Time, n = 3 years

Amount on Rs p invested at the rate of r % per annum compounded semi - annually or half yearly for n years is

$\rm :\longmapsto\:Amount = p {\bigg(1 + \dfrac{r}{200} \bigg) }^{2n}$

$\rm :\longmapsto\:Amount = 10000{\bigg(1 + \dfrac{10}{200} \bigg) }^{2 \times 3}$

$\rm :\longmapsto\:Amount = 10000{\bigg(1 + \dfrac{1}{20} \bigg) }^{6}$

$\rm :\longmapsto\:Amount = 10000{\bigg(\dfrac{20 + 1}{20} \bigg) }^{6}$

$\rm :\longmapsto\:Amount = 10000{\bigg(\dfrac{21}{20} \bigg) }^{6}$

$\rm :\longmapsto\:Amount = 13400.95$

So, Amount = Rs 13400. 95

Hence,

Compound interest = Amount - Principal

= 13400.95 - 10000

= 3400.95

So, Compound interest = Rs 3400.95

Answer 2

Answer:

true

Step-by-step explanation:

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