The number of beetles after 15 weeks = 1,431,212
Calculating total population
The total number of beetles = 500
The rate at which the beetle should grow = 70% per week
Therefore 70% of 500= 70/100 × 500
=35000/100
= 350 per week.
That is every week there would be additional 350 beetles
which is = 500 + 350 = 850 beetles
850/500 = 1.7 times what it was the beginning of the week
Therefore in 15 weeks = 500× 1.7^15
= 500 × 2862.4231
= 1,431,212
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