Question

find the amount which ram will get in on rupees 4096 if he gave it for 18 months at 25/2percent per annum interest being
compounded yearly​

Answer 1

Answer:

$\frac{4096 \times 1.5 \times 12.5}{100} = 76800 \div 100 = 768rs$

amount = interest + principal

amount = 768 + 4096 = 4864 rs

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Answer 2

Here, Principal (P) = Rs. 4096,

$\bold{Rate \: of \: Interest (R) = \frac{25}{2}\%}$

$\small{Time (n) = 18 months = 1\ \frac{1}{2}years = 3 years}$

$Amount (A) = P\left(1+\frac{R}{100}\right)^n$

$= 4096\left(1+\frac{25}{4\times100}\right)^3$

$= 4096\left(1+\frac{1}{4\times4}\right)^3$

$= 4096\left(\frac{17}{16}\right) {}^{3}$

$= 4096\times\frac{17}{16}\times\frac{17}{16}\times\frac{17}{16}$

= Rs. 4913