During a research experiment, it was found that the number of bacteria in a culture grew at a rate proportional to its size. At 10:00AM there were 3000 bacteria present in the culture. At noon the number of bacteria grew to 3,800. How many bacteria will there be at midnight?

Question

anonymous · Answer

3800-3000=400
 
from 10am to 12am, 2 hours have passed 

400/2=200 bacteria per hour

anonymous · Answer

to find your answer just figure out how many hour pass from 12 am to noon, and multiply by 400, then add it to 3800