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The difference between the S.I. and C.I. on a certain sum of money for 2 years at Rs.4 per annum is Rs. 20. Find the sum. |
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Answer» Given, Rate = 4% Time = 2 years C.I – S.I = Rs.20 Let principal = P So, \(={P}[({1}+\frac{4}{100})^2-{1}]-\frac{P \times 4 \times 2}{100}\) = 20 \(=\frac{51p}{625}-\frac{2p}{25}\) = 20 \(=\frac{51p-50p}{625}\) = 20 = p = \({20}\times{625}\) = Es. 12500 Hence, Principal = Rs. 12500 |
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