RRB Section Controller Practice

Number System Questions for RRB Section Controller Exam

RRB Section Controller Number System 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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Number System RRB Section Controller Questions

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Q1The 7-digit number 71A510B is divisible by 3. What is the maximum value of (A + B)?
RRB Section Controller2025Divisibility and Remainder
Q2The 7-digit number 98A038B is divisible by 3. What is the maximum value of (A + B) ?
RRB Section Controller2025Divisibility and Remainder
Q3The 7-digit number 34A690B is divisible by 3. What is the maximum value of (A + B) ?
RRB Section Controller2025Divisibility and Remainder
Q4The 7-digit number 23A908B is divisible by 3. What is the maximum value of (A + B)?
RRB Section Controller2025Divisibility and Remainder
Q5The 7-digit number 82A337B is divisible by 3. What is the maximum value of (A + B) ?
RRB Section Controller2025Divisibility and Remainder
Q6The least number which when increased by 7 is divisible by each of the numbers 32, 36, 54 and 64 is:
RRB Section Controller2025LCM and HCF
Q7The sum of the digits of the greatest number that will divide 1359, 1871 and 2767 leaving the same remainder 15 in each case is:
RRB Section Controller2025LCM and HCF
Q8The 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.
RRB Section Controller2025LCM and HCF
Q9The sum of two numbers is 64 and their L.C.M. is 220. The two numbers are:
RRB Section Controller2025LCM and HCF
Q10Three numbers are in the ratio 1:2:3. If their LCM is 198, find their HCF.
RRB Section Controller2025LCM and HCF
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Q11The HCF of two numbers is 12, and their product is 31104. How many such pairs of numbers are possible?
RRB Section Controller2025LCM and HCF
Q12The H.C.F. and the L.C.M. of two numbers are 13 and 585, respectively. If one of the numbers is 117, then find the other number.
RRB Section Controller2025LCM and HCF
Q13The H.C.F. and the L.C.M. of two numbers are 34 and 408, respectively. If one of the numbers is 102, then find the other number.
RRB Section Controller2025LCM and HCF
Q14Find the sum of all prime numbers greater than 2 but less than 30.
RRB Section Controller2025Prime Numbers
Q15Simplify: √289 + √0.0289 - √4.84
RRB Section Controller2025Square and Square Root
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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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