Railways R.R.C. (Ajmer) Solved Paper Held on 1st Shift 2-11-2014

  • question_answer 98) Three number are in the ratio 1 : 2 : 3 and their H.C.F. is 12. The numbers are?

    A) 4, 8, 12            

    B) 5, 10, 15

    C) 10, 20, 30                     

    D) 12, 24, 36

    Correct Answer: D

    Solution :

    Let the numbers are x, 2x and 3x, then?   \[x=x\] \[2x=2\times x\] \[2x=2\times x\] \[HCF=x=12\] \[\therefore \] Required numbers  \[=12,2\times 12,3\times 12\] \[=12,24,36\]

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