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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(i) 3 years(ii) 10 years(iii) n years |
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Answer» a = 200, r = 1 + 10/100 = 11/10 Mosquitoes at the end of 1st year = 200 x 11/10 (i) Number of mosquitoes after 3 years = 200 x 11/10 x (11/10)2 = 200 (11/10)3 = 200 (1.1)3 (ii) Number of mosquitoes after 10 years = 200 (1.1)10 (iii) Number of mosquitoes after n years = 200 (1.1)n |
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