SSC (English Medium) Class 8Maharashtra State Board
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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

ConceptApplication of Formula for Compound Interest

#### 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.

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#### 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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