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LCM and HCF Practice Questions - Page 2

Questions 11–20 of 39 · Page 2 of 4

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Questions
39
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Q11Find the LCM of 2/3, 4/5, and 6/7.DifficultSolve →Q12The sum of two numbers is 153 and their HCF is 17. Find their LCM if they are coprime after dividing by HCF.ModerateSolve →Q13Find the greatest 5-digit number divisible by 12, 15, 20, and 27.DifficultSolve →Q14The HCF of 24 and 36 is:ModerateSolve →Q15The greatest number that divides 62, 132, and 237 leaving same remainder 2 is:ModerateSolve →Q16Three bells ring at intervals of 12, 15, and 20 minutes. If they ring together at 9:00 AM, when are they next together?EasySolve →Q17Find the HCF of 210 and 1155.EasySolve →Q18Find the HCF of 3/4, 9/16, 15/24.DifficultSolve →Q19Find the least number divisible by 24 and leave the remainder 9 when divided by 13.DifficultSolve →Q20Find the least number to add to 6412 to make divisible by 15, 18, and 24.ModerateSolve →
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