Problem on finding least number

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SUMMARY

The problem involves determining how many times six bells, ringing at intervals of 2, 4, 6, 8, 10, and 12 seconds, will ring together in a 30-minute period. The solution requires calculating the least common multiple (LCM) of these intervals, which establishes the frequency at which all bells ring simultaneously. Once the LCM is found, the number of intervals within 30 minutes can be computed to find the total number of times the bells ring together.

PREREQUISITES
  • Understanding of least common multiple (LCM)
  • Basic arithmetic operations
  • Time conversion (minutes to seconds)
  • Familiarity with interval calculations
NEXT STEPS
  • Learn how to calculate the least common multiple (LCM) of multiple numbers
  • Explore time conversion techniques for solving interval problems
  • Practice interval calculations with different sets of numbers
  • Investigate applications of LCM in real-world scenarios, such as scheduling
USEFUL FOR

Students tackling math homework, educators teaching number theory concepts, and anyone interested in solving problems involving periodic events.

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Help need to solve math homework problem

Six bells start ringing together and ring at intervals of 2, 4, 6, 8, 10 and 12 seconds respectively. In 30 minutes, how many times do they ring together?

Thanks
 
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So how many intervals of 2 seconds are there in 30 mins?

How many intervals of 4 seconds?

How many intervals of 6? etc...
 
burgess said:
Help need to solve math homework problem

Six bells start ringing together and ring at intervals of 2, 4, 6, 8, 10 and 12 seconds respectively. In 30 minutes, how many times do they ring together?

Thanks
You need to find the least common multiple of 2, 4, 6, 8, 10 and 12. That will give you the interval (measured in seconds) between times when they all ring together. You then have to find how many of those intervals there are in 30 minutes.
 
Opalg said:
You need to find the least common multiple of 2, 4, 6, 8, 10 and 12. That will give you the interval (measured in seconds) between times when they all ring together. You then have to find how many of those intervals there are in 30 minutes.

Thanks for your answer
 

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