If 100 bacteria get into our body and reproduce every 20 minutes how many will there be in 2 hours?
2 hours =120 min
120/20=6
6x100=600
600
To calculate the number of bacteria in 2 hours, we need to figure out how many times they will reproduce in that time frame.
Since the bacteria reproduce every 20 minutes, we can calculate the number of 20-minute intervals in 2 hours by dividing 2 hours (120 minutes) by 20 minutes:
120 minutes / 20 minutes = 6 intervals
This means that within a 2-hour period, the bacteria will go through 6 reproductive cycles.
Now, let's calculate the total number of bacteria after 2 hours:
Starting with 100 bacteria, they will reproduce after the first 20 minutes, resulting in 2 bacteria (since 1 bacterium divides into 2).
After the second 20 minutes, each of the 2 bacteria will reproduce, giving us 4 bacteria.
After the third 20 minutes, each of the 4 bacteria will reproduce, resulting in 8 bacteria.
This pattern will continue for each 20-minute interval, so after the 6th interval, we will have:
2 * 2 * 2 * 2 * 2 * 2 = 64 bacteria.
Therefore, after 2 hours, there will be a total of 64 bacteria in our body.