LCM and HCF Questions for Railway Exams
Railway LCM and HCF Questions bring together the LCM and HCF questions available from Railway papers on PrepShots. Practise across the different exams in this group, compare the question mix and open any question to view its complete solution.
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Showing 1–20 of 111LCM and HCF Railway Questions
Q1The least number which when increased by 7 is divisible by each of the numbers 32, 36, 54 and 64 is:Q2The sum of the digits of the greatest number that will divide 1359, 1871 and 2767 leaving the same remainder 15 in each case is:Q3The largest four-digit number which when divided by 7, 6 and 10 leaves the remainder 5 in each case, is:Q4The largest four-digit number which when divided by 15, 12 and 14 leaves remainder 5 in each case is:Q5If the LCM of two numbers is 192 and their HCF is 32. If the first number is 64, find the second number.3197Q6The sum of two numbers is 50 and their LCM is 429. The two numbers are:2607Q7The sum of two numbers is 60 and their HCF and LCM are 12 and 72 respectively. Then find the sum of the reciprocals of the two numbers.Q8The sum of two numbers is 88 and their L.C.M. is 870. The two numbers are:Q9The sum of two numbers is 54 and their LCM is 195. The two numbers are:Q10If the HCF of three numbers is 23 and they are in the ratio 1:2:3, then the numbers are:Practice Free →Q11If the HCF of two numbers is 12 and their product is 2160, what is the LCM of the two numbers?Q12The product of two numbers is 324 and their HCF is 3. Then their LCM will be:Q13The H.C.F. and the L.C.M. of two numbers are 18 and 540, respectively. If one of the numbers is 90, then find the other number.Q14The sum of two numbers is 64 and their L.C.M. is 220. The two numbers are:Q15Two bells are rung at intervals of 1,764 seconds and 2,268 seconds, respectively. They are rung together at the start. After how much time will the two bells ring together again for the first time?Q16Trains from Delhi, Lucknow, and Jaipur depart every 12 minutes, 18 minutes, and 27 minutes, respectively. If all depart together at 6:00 am, when will they depart together again?Q17Two numbers are in the ratio 4 : 5. If their LCM is 240, what is the sum of the two numbers?Q18Three numbers are in the ratio 1:2:3. If their LCM is 198, find their HCF.Q19Three numbers are in the ratio 4 : 13 : 9, and their LCM is 6084. Their HCF is:Q20Three numbers are in the ratio 3 : 2 : 13, and their LCM is 6318. Their HCF is:
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Divisibility Rule of 15Divisibility Rule of 18Divisibility Rule of 2Divisibility Rule of 3Divisibility Rule of 4Divisibility Rule of 6Divisibility Rule of 8Divisibility Rule of 9Divisibility RulesEuclidean AlgorithmEuler's TheoremEven and Odd NumbersEven FactorsFactorialFactors and MultiplesFermat's TheoremHCFHCF and LCMHCF by Prime FactorizationHighest Power in FactorialIntegersLCMLCM by Prime FactorizationNatural NumbersNumber of FactorsNumber SystemOdd FactorsPlace Value and Face ValuePrime FactorsPrime NumbersRational and Irrational NumbersReal NumbersRemainderRemainder TheoremSquare and Square RootSum of FactorsTrailing Zeros in FactorialTypes of NumbersUnit DigitWhole Numbers
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