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New GRE Multiple Answer Question: Practice Question of the Week #9

This week’s practice problem is a Multiple Answer Question, one of the new questions formats for the revised exam: remember, you can choose more than one answer!

If x > 0, and two sides of a certain triangle have lengths 2x+1 and 3x+4 respectively, which of the following could be the length of the third side of the triangle?

Indicate all possible lengths.

  1. 4x+5
  2. x+2
  3. 6x+1
  4. 5x+6
  5. 2x+17

Good luck, the answer will be posted tomorrow! 🙂


Update: Here’s the answer/explanation post!

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4 Responses to New GRE Multiple Answer Question: Practice Question of the Week #9

  1. venkatesh July 28, 2011 at 5:24 am #

    ans is a and b

    • venkatesh July 28, 2011 at 5:32 am #

      sorry i regret for my answers.i answered in hasty manner.

  2. Raj July 27, 2011 at 7:16 am #

    We know any side of a triangle c relates to other two sides a and b as : |(a-b)| < c < |(a+b)|

    In this case: 2x + 4 < c 0

    A. 4x + 5 : exceeds 4x + 4
    B. x + 2 : less than 2x + 4 or 2(x+2)
    C. 6x + 1: satisfies (can be checked by putting x =1, 2 )
    D. 5x + 6: exceeds
    E. 2x + 17: exceeds

    Ans. C

  3. Ahmed July 27, 2011 at 12:34 am #

    Addition of the two sides is 4x+4. So the length of third side must be less than 4x+4. 4x+5 and 5x+6 must be greater than 4x+4 for any value of x>0.
    So the possible answers are

    C (for very small value of x)
    E (for very big value of x)

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