Five bells ring together at the intervals of 3, 5, 8, 9 and 10 seconds. All the bells ring simultaneously at the same time. They will again ring simultaneously after:
Answer & explanation
Correct answer: option 1
The LCM for 3, 5, 8, 9 and 10 seconds = 360 seconds
⇒1 minute = 60 second
So that,1 seconds= \(\frac{1}{60}\) min
⇒ 360 seconds = \(\frac{360}{60}\) = 6 minutes