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.

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Solution

solution:

At starting number of trees are $40, 000.$

The objective is to increase by $5 %$

so $5 %$ of $40, 000 = \frac{5}{100} \times 40000$

$= \frac{20, 0000}{100}$

$= 2000$

In one the year $2000$ plants to be planted, so in three years $= 3 \times 2000$ trees

$= 6000 t r e e s$

Expected number of the tree after $3$ years $= 46, 000$ trees.

2) If $5 %$ is calculated on present trees after 1-year total trees $42, 000.$

$5 %$ of $42, 000 = \frac{5}{100} \times 42000$

$= 2100$

after second-year trees are $42000 + 2100$

$= 44100$ trees

$5 %$ of $44100 = \frac{5}{100} \times 44100$

$= 2205$

after $3$ year expected trees $= 44100 + 2205$

$= 46305$ trees.

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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.

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.