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No idea as to how to approach this one

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coolhabhi Rising GMAT Star Default Avatar
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No idea as to how to approach this one Post Sun Apr 15, 2012 1:34 pm
Elapsed Time: 00:00
  • Lap #[LAPCOUNT] ([LAPTIME])
    The seven letters correspond to seven unique digits chosen from 0 to 9. The relation among the digits is such that:
    P.Q.R = X.Y.Z = Q.A.Y

    Q55. The value of A is:
    A. 0
    B. 2
    C. 3
    D. 6
    E. None of the above

    Q56. The sum of the digits which are not used is:
    A. 8
    B. 10
    C. 14
    D. 15
    E. None of the above

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    killer1387 GMAT Destroyer! Default Avatar
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    Post Sun Apr 15, 2012 7:35 pm
    coolhabhi wrote:
    The seven letters correspond to seven unique digits chosen from 0 to 9. The relation among the digits is such that:
    P.Q.R = X.Y.Z = Q.A.Y

    Q55. The value of A is:
    A. 0
    B. 2
    C. 3
    D. 6
    E. None of the above

    Q56. The sum of the digits which are not used is:
    A. 8
    B. 10
    C. 14
    D. 15
    E. None of the above
    we wont be using 0,5 and 7 because to satisfy the product condition these three cant be used.
    rest can be solved by hit and trial,

    55: 2 (B)
    56: 12 (E)

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