Question
The number of trees in a park increases by 12% every
year. If the number of trees after 2 years will be 3,136, find the current number of trees in the park.Solution
ATQ,
Let, the present number of trees be ‘x’.
ATQ,
So, the number of trees after 2 years = 1.12 × 1.12 × x = 3136
Or, x = 3136 × (1/1.12) × (1/1.12)
So, x = 2,500
Therefore, the current number of trees in the park = x = 2,500
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