Question

If a sum of money is increased 1/5 of it self amount to Rs 8546 in five year find the sum ​

Answer 1

Let’s use the Exponential growth function for this:

y = a(1 + b)^x

y = Rs 8546

b = 1/5 of a, or 20%

x = 5 years

a = the initial amount = ?

8546 = a*((1 + .20)^ 5)

8546 = a*(1.20^5)

a = 8546 / 2.48832

a = Rs 3434.45 - The original sum five years ago.

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