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In a Forest There Are 40,000 Trees. Find the Expected Number of Trees After 3 Years If the Objective is to Increase the Number at the Rate 5% per Year. - SSC (English Medium) Class 8 - Mathematics

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Question

In a forest there are 40,000 trees. Find the expected number of trees after 3 years if the objective is to increase the number at the rate 5% per year.

Solution

Here, P = Number of trees initially = 40,000
A = Number of trees after 3 years
R = Rate of increase of number of trees per year = 5 %
N = 3 years

A = P `(1 + "R"/100)^"N"`

   = 40000 `(1 + 5/100)^3`

    = 40000 `(1 + 1/20)^3`

    = 40000 `(21/20)^3`

    = 46305

    Hence, the expected number of trees after 3 years is 46,305.

  Is there an error in this question or solution?

APPEARS IN

 Balbharati Solution for Balbharati Class 8 Mathematics (2019 to Current)
Chapter 14: Compound interest
Practice Set 14.2 | Q: 3 | Page no. 93
Solution In a Forest There Are 40,000 Trees. Find the Expected Number of Trees After 3 Years If the Objective is to Increase the Number at the Rate 5% per Year. Concept: Application of Formula for Compound Interest.
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