Deepak Bora
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The amount of money in the account every year, when Rs 10000 is deposited at compound interest at 8% per annum. Find wether it is A.P or not.

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The Question is in NCERT of Class 10th on Page no. 99 Ex. 5.1 Question number 1 (iv). Find whether the following question is an Arithmetic Progression or Not? Also give the sloution.


1 Answer

  1. Solution:

    r= 8%

    p= 10000

    n= No. of Years

    Compound Interest = P(1+r/100)n

    ∴ after each year, the amount will be;

    10000(1+8/100),  10000(1+8/100)2,  10000(1+8/100)3……

    Clearly, in this series the common difference between them is not equal. This is not an A.P.

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