Two big bells in a haĺl starts to ring together at 5:00 hours one rings every 15 sec and other every 12 sec how often will they ring together
What is the least common multiple of 15 and 12?
Once
To determine how often the two bells will ring together, we need to find the least common multiple (LCM) of their ringing intervals. In this case, one bell rings every 15 seconds and the other bell rings every 12 seconds.
Step 1: Find the multiples of 15 seconds: 15, 30, 45, 60, 75, 90, ...
Step 2: Find the multiples of 12 seconds: 12, 24, 36, 48, 60, 72, 84, ...
The first common multiple they both share is 60 seconds. Therefore, the two bells will ring together every 60 seconds (or 1 minute).