Find the compound interest on rs 1200 for 2yrs at 5% per annum
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principal = 1200 RS
given that
rate = 5 %
time = 2years
\begin{gathered}a = p {(1 + \frac{r}{100} )}^{t} \\ \\ = 1200 {(1 + \frac{5}{100} )}^{2} \\ \\ 1200 {(1 + \frac{1}{20} )}^{2} \\ \\ = 1200 {( \frac{20 + 1}{20}) }^{2} \\ \\ = 1200 { (\frac{21}{20}) }^{2} \\ \\ = 1200 \times \frac{21}{20} \times \frac{21}{20 } \\ \\ = 3 \times 21 \times 21 \\ \\ = 1323 \\ \\ compound \: interest \: = amount \: - principle \: \\ \\ = 1323 - 1200 \\ \\cp = 123\end{gathered}
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I have attached my Answer
Step-by-step explanation:
CP =123
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