1) What sum will amount to the
Rs 21296 in 3 years at to 7%
per annum compounded
annually .​

1 thought on “1) What sum will amount to the<br />Rs 21296 in 3 years at to 7%<br />per annum compounded<br />annually .​”

1. Step-by-step explanation:

   Amount = 21296

   Term = 3 Years

   Rate p.a = 10%

   CI Amount formula = P(\frac{100+R}{100} )^3P(

   100

   100+R

   )

   3

   \begin{gathered}21296=P(\frac{110}{100})^3\\\end{gathered}

   21296=P(

   100

   110

   )

   3

   \begin{gathered}\frac{21296}{P}=(\frac{110}{100})^3\\\end{gathered}

   P

   21296

   =(

   100

   110

   )

   3

   \frac{21296}{P}=\frac{1331}{1000}

   P

   21296

   =

   1000

   1331

   \frac{21296}{P}=\frac{1331*16}{1000*16} (as 1331 * 16 = 21296)

   P

   21296

   =

   1000∗16

   1331∗16

   (as1331∗16=21296)

   \frac{21296}{P}=\frac{21296}{16000}

   P

   21296

   =

   16000

   21296

   ∴ Principle = 16000

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