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Surbhi gets rupees 8100 as interest form her account.Find the interest rate per annum on a sum of rupees 72000 in 3 years |
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Answer» A=p+c =8100+72000 =80100 A=p(1+r/100)n 80100=72000(1+r/100)3 80100/72000(1+r/100)3 801/720=(1+r/100)3 89/80=(1+r/10%)3 |
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