Question
Three streetlights flash together. Each of them then flashes after 0.35 seconds, 0.2 seconds, and 0.105 seconds respectively. After how many seconds will they all flash together again?
More HCF and LCM Questions
- If the product of two numbers is 144 and their HCF is 6, then find the LCM of the given two numbers.
- Let N be the greatest number that will divide 86, 120, 154 leaving the same remainder in each case. Then sum of the digits in N is:
- The HCF of two numbers is 12 and their LCM is 420. If one number is 84, find the other number.
- The least number which when divided by 12, 27 and 39 leave remainder 8, 23 and 35 respectively is?
- The length of a width is 20 cm and the side of a square is 24 cm less than the length and width of the rectangle. If perimeter of the rectangle is 30 cm mo...
- Find the least common multiple of (16/20), (8/10), and (4/5).
- The sum of two numbers is 156 and their HCF is 26. Find how many such pairs can be formed.
- The product of two positive integers is 1400. If their HCF is 5 and their sum is 75, then find the difference between the numbers.
- The ratio of two numbers is 5: 8 and their LCM is 320. What is the difference between these two numbers?
- A, B and C start running around a circular track and complete one round in 10, 15 and 25 seconds respectively. In how many seconds will the three meet agai...
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