Number System


  1. The pair of numbers which are relatively prime to each other is









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    Find HCF, if HCF is 1 then pair of numbers are relatively prime to each other.

    Correct Option: C

    92 and 85 are coprime numbers because their HCF is 1.


  1. When 121012 is divided by 12, the remainder is









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    Divide and get the remainder

    Correct Option: D

    121012 = 12 x 10084 + 4
    ∴ remainder = 4



  1. Find the sum of place and face values of 8 in 43836









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    Place value of 8 = 800
    Face value of 8 = 8

    Correct Option: B

    Place value of 8 = 800
    Face value of 8 = 8
    ∴ required sum = 800 + 8


  1. Find the face value of 7 in 942756









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    Face value is the value of digit itself

    Correct Option: A

    Face value is the value of digit itself
    ∴ face value of 7 = 7



  1. Find the dividend when divisor is 13, quotient is 30 and remainder is 12









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    dividend = divisor x quotient + remainder

    Correct Option: A

    dividend = divisor x quotient + remainder
    = ( 13 x 30) + 12
    = 390 + 12
    = 402