there are 3 alarms A, B , C.A rings after every 3 hrs, B rings after every 4 hrs and C rings after every 6 hrs.Find the time interval after which the 3 alarms ring together after ringing once.
Asked by Amyra B | 17th Apr, 2013, 06:44: PM
We need to find the time at which all the 3 alarms will ring at the same time, hence we need to find the lowest common multiple of the time intervals of the 3 alarams i.e. LCM (3,4,12) = 12
Hence, the three alarms will ring together at every 12 hour intervals.
Answered by | 17th Apr, 2013, 09:03: PM
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Verify mobile number
Enter the OTP sent to your number