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Question
Mosquitoes are growing at a rate of 10% a year. If there were 200 mosquitoes in the beginning. Write down the number of mosquitoes after 3 years.
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Solution
a = 200, r = `1 + 10/100 = 11/10`
Mosquitoes at the end of 1st year = `200 xx 11/10`
Number of mosquitoes after 3 years
= `200 xx 11/10 xx (11/10)^2`
= `200(11/10)^3`
= 200 (1.1)3
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