Question
In two alarm clocks, alarms sound at regular intervals of 90 seconds and 44 seconds. If they ring for the first time at 6:00 PM, when will they next ring together?
More HCF and LCM Questions
- The sum of two numbers is 156 and their HCF is 26. Find how many such pairs can be formed.
- Three boys runs around a circular track and takes 24 min, 40 min and 42 min respectively to complete the one round. When do they all come relatively to the...
- The smallest number which when divided by 25 and 30 leaves remainder 10 and 15 respectively is:
- Determine the difference between the LCM and HCF of 18, 24, and 36.
- The LCM of two numbers is 432 and their HCF is 55. If one of the numbers is 132, the other number is:
- The least number which when divided by 4, 8, 10 and 12 leave zero remainder in each case and when divided by 13 leaves a remainder of 9 is:
- LCM of 21 5 , 21 10 and 21 15 is? (1). 21 5 (2). 21 15 (3).2130 (4 ). 21 10
- The LCM of two numbers is 40 times its HCF. If the product of the numbers is 1440, find their HCF.
- A number between 4000 and 5000 that is divisible by each of 15, 20, 24 and 32 is
- Find the HCF and LCM of 24, 36 and 60.
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