Number System Questions for Railway Exams
Railway Number System Questions bring together the Number System 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 255Number System Railway Questions
Q1The 7-digit number 71A510B is divisible by 3. What is the maximum value of (A + B)?Q2The 7-digit number 98A038B is divisible by 3. What is the maximum value of (A + B) ?Q3The 7-digit number 34A690B is divisible by 3. What is the maximum value of (A + B) ?Q4The 7-digit number 23A908B is divisible by 3. What is the maximum value of (A + B)?Q5The 7-digit number 82A337B is divisible by 3. What is the maximum value of (A + B) ?Q6Which of the following numbers is completely divisible by 6?Q7Which of the following digits should replace X so that the three-digit number 2X2 is divisible by 4?Q8A transaction code 92419 is not divisible by 13. To make it divisible by 13, the least digit should be appended at the end of the number. What is that digit?Q9The least number which when increased by 7 is divisible by each of the numbers 32, 36, 54 and 64 is:Q10The sum of the digits of the greatest number that will divide 1359, 1871 and 2767 leaving the same remainder 15 in each case is:Practice Free →Q11The largest four-digit number which when divided by 7, 6 and 10 leaves the remainder 5 in each case, is:Q12The largest four-digit number which when divided by 15, 12 and 14 leaves remainder 5 in each case is:Q13If the LCM of two numbers is 192 and their HCF is 32. If the first number is 64, find the second number.3197Q14The sum of two numbers is 50 and their LCM is 429. The two numbers are:2607Q15The 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.Q16The sum of two numbers is 88 and their L.C.M. is 870. The two numbers are:Q17The sum of two numbers is 54 and their LCM is 195. The two numbers are:Q18If the HCF of three numbers is 23 and they are in the ratio 1:2:3, then the numbers are:Q19If the HCF of two numbers is 12 and their product is 2160, what is the LCM of the two numbers?Q20The product of two numbers is 324 and their HCF is 3. Then their LCM will be:
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Number SystemBinary Number SystemCo-prime NumbersComposite NumbersCube and Cube RootCyclicityDifferent Types of Remainder ProblemsDivisibility Rule of 11
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Divisibility Rule of 12Divisibility 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 FactorsOdd 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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