Word Problems with LCM

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Thames
T
Thames
Community Contributor
Quizzes Created: 6941 | Total Attempts: 9,517,194
| Questions: 20
Please wait...
Question 1 / 20
0 %
0/100
Score 0/100
1) Two city fountains spray every 12 minutes and 18 minutes. After how many minutes will both spray together?
Submit
Please wait...
About This Quiz
Word Problems With LCM - Quiz

Bells ringing, lights blinking, buses arriving—real life is full of repeating events! In this quiz, you’ll solve word problems where the LCM tells you when things happen at the same time. Take this quiz to discover how LCM is used to make sense of everyday situations.

2)
We’ll put your name on your report, certificate, and leaderboard.
2) A school's fire drill bell rings every 10 minutes, while the class-change bell rings every 15 minutes. After how many minutes will both bells ring together?
Submit
3) One light changes every  8 seconds, another changes every 12 seconds. After how many seconds will they both change at the same time?
Submit
4) A gardener plants tulips in rows of 6 and daffodils in rows of 8. What is the least number of flowers needed in each row so both fit evenly?
Submit
5) Two runners take water breaks: one every 14 minutes, the other every 21 minutes. When will they both stop for water together?
Submit
6) A digital clock beeps every 20 minutes, while a smartwatch sends reminders every 50 minutes. After how many minutes will both beep together?
Submit
7) A movie projector needs a reel change every 12 minutes, while another projector changes reels every 16 minutes. When will both need to change reels at the same time?
Submit
8) Two gamers log in to play: one every 9 days, the other every 15 days. In how many days will they both log in on the same day?
Submit
9) One teacher schedules a class quiz every 6 days, another every 10 days. After how many days will they give quizzes on the same day?
Submit
10) One streetlight blinks every 4 seconds, another blinks every 7 seconds. After how many seconds will they blink together?
Submit
11) Two ferries leave the harbor every 18 minutes and 24 minutes. After how many minutes will both leave together?
Submit
12) A radio station plays ads every 12 minutes, another every 15 minutes. After how many minutes will both stations play ads at the same time?
Submit
13) A lighthouse flashes every 25 minutes, another every 30 minutes. After how many minutes will both flash together?
Submit
14) A student has soccer practice every 8 days and piano lessons every 12 days. After how many days will both fall on the same day?
Submit
15) A teacher assigns reading every 9 days and projects every 12 days. After how many days will both assignments be due on the same day?
Submit
16) A car rental company services one car model every 15 days and another every 20 days. After how many days will both models need service together?
Submit
17) A car rental company services one car model every 15 days and another every 20 days. After how many days will both models need service together?
Submit
18) A school has art class every 10 days and science lab every 12 days. After how many days will both classes be on the same day?
Submit
19) Two buses run on schedules of 28 minutes and 42 minutes. After how many minutes will both buses arrive together?
Submit
20) A rocket testing facility checks one rocket every 16 days, another every 24 days. After how many days will both be tested together?
Submit
View My Results

Quiz Review Timeline (Updated): Oct 12, 2025 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Oct 12, 2025
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 01, 2025
    Quiz Created by
    Thames
Cancel
  • All
    All (20)
  • Unanswered
    Unanswered ()
  • Answered
    Answered ()
Two city fountains spray every 12 minutes and 18 minutes. After how...
A school's fire drill bell rings every 10 minutes, while the...
One light changes every  8 seconds, another changes every 12...
A gardener plants tulips in rows of 6 and daffodils in rows of 8. What...
Two runners take water breaks: one every 14 minutes, the other every...
A digital clock beeps every 20 minutes, while a smartwatch sends...
A movie projector needs a reel change every 12 minutes, while another...
Two gamers log in to play: one every 9 days, the other every 15 days....
One teacher schedules a class quiz every 6 days, another every 10...
One streetlight blinks every 4 seconds, another blinks every 7...
Two ferries leave the harbor every 18 minutes and 24 minutes. After...
A radio station plays ads every 12 minutes, another every 15 minutes....
A lighthouse flashes every 25 minutes, another every 30 minutes. After...
A student has soccer practice every 8 days and piano lessons every 12...
A teacher assigns reading every 9 days and projects every 12 days....
A car rental company services one car model every 15 days and another...
A car rental company services one car model every 15 days and another...
A school has art class every 10 days and science lab every 12 days....
Two buses run on schedules of 28 minutes and 42 minutes. After how...
A rocket testing facility checks one rocket every 16 days, another...
Alert!

Back to Top Back to top
Advertisement