Question

A particular strain of bacteria triples in population every 45 minutes.

Answer 1

Answer- there are 6 45 minute segments in 4.5 hours. Therefore, you would need to triple the population six times.
50x3=150
150x3=450
450x3=1350
1350x3=4050
4050x3=12150
12150x3=36450

Therefore, if the population triples every 45 minutes from 50 for 4.5 hours, you would end up with 36,450 bacteria