The rate of growth of bacteria in a culture is proportional to the number of bacteria present and the bacteria count is 1000 at initial time . The number of bacteria is increased by 20% in 2 hours. If the population of bacteria is 2000 after hours, then is equal to :
Option: 1 2
Option: 2 4
Option: 3 8
Option: 4 16
Initial bacteria count = 1000
20% bacteria increased in 2 hours = 1200
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