Question
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 again at the starting point if they all have started running at the same time?
More HCF and LCM Questions
- Find the HCF of 84 and 630.
- The total and the difference of L.C.M and H.C.F of two numbers is 378 and 126. If one of the numbers is 27, what is the other number?
- The HCF of two numbers is 84, and their LCM is 2520. What is the sum of the numbers?
- What is the fourth proportional to 4, 5, 16?
- The LCM of two numbers is 40 times its HCF. If the product of the numbers is 1440, find their HCF.
- The sum and difference of L.C.M and H.C.F of two numbers are 294 and 126. If one of the numbers is 21, find the other number.
- The smallest number which when divided by 28 and 32 leaves remainder 12 and 16 respectively is:
- Two numbers are in the ratio 4 : 5 and their least common multiple (LCM) is 1800. What are the two numbers?
- The product of two numbers is 1344 and their L.C.M is 168. What is the H.C.F of the two numbers?
- The product of two numbers is 4950 and their L.C.M is 225. What is the H.C.F of the two numbers?
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