LCM and HCF Questions for RRB Group D Exam
RRB Group D LCM and HCF Questions bring together the published questions available for this exam on PrepShots. Work through the set at your own pace, revise the underlying concepts when needed, and open any question to view its complete solution.
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Showing 1–20 of 44LCM and HCF RRB Group D Questions
Q1If the LCM of two numbers is 192 and their HCF is 32. If the first number is 64, find the second number.3197Q2The sum of two numbers is 50 and their LCM is 429. The two numbers are:2607Q3The 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.Q4The sum of two numbers is 88 and their L.C.M. is 870. The two numbers are:Q5The sum of two numbers is 54 and their LCM is 195. The two numbers are:Q6If the HCF of three numbers is 23 and they are in the ratio 1:2:3, then the numbers are:Q7If the HCF of two numbers is 12 and their product is 2160, what is the LCM of the two numbers?Q8The product of two numbers is 324 and their HCF is 3. Then their LCM will be:Q9Find the greatest number that exactly divides 46, 98 and 74.Q10What is the Highest Common Factor (HCF) of 252 and 378?Practice Free →Q11Which of the following is the correct model for finding the Highest Common Factor (HCF) of two numbers?Q12If x+6 is the HCF of x² + 10x + 24 and x² + kx + 12 , then the value of k is:Q13There are 156 boy students and 143 girl students in a school. The principal wants to divide them in sections, such that a section can have only boys or only girls. If all sections should have the same number of students, and the principal wants to have as fewer sections as possible, how many sections would be there in the school?Q14Find the HCF of 148, 172, and 198.Q15What is the smallest natural number that should be added to 9054 such that a remainder of 6 is left when the resulting number is divided by each of the numbers 28, 24, 56 and 29?Q16What is the smallest natural number which when divided by 18, 35 and 140 leaves remainder 7 in each case?Q17What is the smallest natural number that should be added to 4478 such that a remainder of 2 is left when the resulting number is divided by each of the numbers 56, 80, 16 and 60?Q18If the ratio of two numbers is 2 : 5, and their HCF is 29, then their LCM is:Q19The LCM of two numbers is 84. The numbers are in the ratio 4 : 3. Find the sum of the numbers.3129Q20The ratio of two numbers is 3:4 and their HCF is 7. Their LCM 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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