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 LCM of two numbers is 720. The HCF of these numbers is 12. If one of the numbers is 48, find the other number.
- The ratio of two numbers is 6:11 and their LCM is 264. The numbers are:
- If 12 times a number is subtracted from the square of the number and then 36 is added to the result, then the result is zero. Find the L.C.M of the number ...
- Find the difference between sum of digits of LCM and HCF of 45, 60 and 75.
- The LCM of two numbers is 5 times of their HCF. The sum of LCM and HCF is 300. If one of the number is 250, then the other number is:
- What is the minimum number of square marbles required to tile a floor of length 4 metres 35cm and width 3 metres 60 cm?
- Three numbers a, b and c are co-prime to each other such that ab = 115 and bc = 253. Find the value of (a + b + c).
- The greatest number of four digits which when divided by 10, 12, 14 leave remainders 5, 7, 9 respectively is:
- Let N be the greatest number that will divide 78, 109, 140 leaving the same remainder in each case. Then sum of the digits in N is:
- If total number of factors of 1,260 is 'x', then find the value of (x - 4) (x + 6).
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