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inn [45]
3 years ago
7

Find the period.

Mathematics
1 answer:
Andre45 [30]3 years ago
6 0

Answer:

The Time period of the Amount is 5 years 3 days .

Step-by-step explanation:

Given as :

The principal = p = Rs 9300

The annual rate of interest = r = 13%

The Total amount after t years = A = Rs 17,763

Let The time period = t years

<u>From Compound Interest method </u>

Amount = principal × (1+\dfrac{\textrm rate}{100})^{\textrm time}

Or, A = p × (1+\dfrac{\textrm r}{100})^{\textrm t}

Or, Rs 17,763 = Rs 9300 × (1+\dfrac{\textrm 13}{100})^{\textrm t}

Or, \dfrac{17763}{9300} = (1.13)^{t}

or, 1.91 = (1.13)^{t}

Taking Log both side

Log_{10}1.91 = Log_{10}(  (1.13)^{t} )

or, 0.2810 = t × Log_{10}1.13

or, 0.2810 = t × 0.0530

∴ t - \dfrac{0.2810}{0.0530}

I.e t = 5.30 years

So, The time period = t = 5 years 3 days

Hence The Time period of the Amount is 5 years 3 days . Answer

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