The percentage increase in the number of Greywolf is 90% and this can be determined by using the unitary method.
Given :
- There are previously 20 Greywolf in a wildlife park.
- After a few years, the total number of Greywolf is 38.
The following steps can be used in order to determine the percentage increase in the number of Greywolf:
Step 1 - The unitary method can be used in order to determine the percentage increase in the number of Greywolf.
Step 2 - According to the given data, there are previously 20 Greywolf in a wildlife park which is 100%.
Step 3 - So, let the percentage of 38 Greywolf be 'x'. So, the value of 'x' can be calculated as:
[tex]x = \dfrac{38}{20}\times 100[/tex]
[tex]x = 190\%[/tex]
Step 4 - So, the percentage increase in the number of Greywolf is:
[tex]{\rm Percentage \; Increase} = 190-100[/tex]
[tex]{\rm Percentage \; Increase} = 90\%[/tex]
The percentage increase in the number of Greywolf is 90%.
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