Miguel had 25 bacteria in his petri dish at 2 PM. There were 72 in the dish at 2:30 PM. Assuming exponential growth, at what rate are they increasing?
Population Sample Word Problems

Quiz
•
Mathematics
•
12th Grade
•
Hard
Anthony Clark
FREE Resource
17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
9.6% per minute
0.03526% per minute
35.26% per minute
3.526% per minutes
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If a population of 300 animals in a certain region is growing exponential at 2% per year, when will the population reach 400?
14.4 years
15 years
6.2 years
20 years
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Here at Middleburg HS, more and more students are getting onboard with destroying the restrooms out by the math portables. I mean, if I can't go to Tinkletown, nobody can go! The problem first began in 1998 and has continued to grow at a rate of 10% each year. If there were 12 students that started this problem in 1998, how many students would we expect to be onboard with destroying the restrooms in 2023? (Round to the nearest whole number)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fleming Island High School holds student elections every year to see which student is the most popular. Lately, the school has seen a 5% decrease in voting from one election year to the next. If 910 students voted this year, how many will be expected to vote 8 years from now? (Round to the nearest whole number if necessary).
604
777
902
573
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A city doubles its size every 10 years. If the population is currently 225,000, what will the population be in 20 years?
The population will be 225,000.
The population will be 450,000.
The population will be 900,000.
The population will be 1,800,000.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The population of the Metaverse increases by 15% every year. If there are currently 190,000 people in the Metaverse, what will be the population in 13 years?
If necessary, round your answer to the nearest whole number.
1,125,860 people.
22,972 people.
1,169,030 people.
1,188,311 people.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
As part of a 6th grade statistics project, the teacher brings a candy jar full of gumballs (red & green). The assignment is to estimate the proportion of red gumballs in the jar. Suppose one of the students draws 25 gumballs from the jar: 8 are red, 17 are green. What is the SAMPLE?
25 gumballs drawn
all gumballs in the jar
the students
the 17 green gumballs
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