Solved Paper-I On Topic : Solved Paper-I June (Re test 8th Sept) 2013

Que : 1 . The world population growth rate at a certain reference year was 3.5%. Assuming exponential growth of population, after how many years, the population of the world would have increased by a factor 16 ?

1. ~ 80 years
2. ~ 40 years
3. ~ 160 years
4. ~ 320 years
Please Select Ans Options .
Explanation

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