GRE Exam Numerical Ability Algebra

If x is a positive integer greater than 1. Which of the following has the greater value ? (A) 1/(x+1) (B) 1/x (C) x/[1/(x+1)] (D)x/(x+1) (E) x/[x/(x+1)]

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GRE Other Question

What is the difference between the number of 4 member committees that can be formed from a group of 8 members and the total number of ways there are to arrange the members of such a committee ? (A)1720 (B)1610 (C)1390 (D) 1680 Two sides of a triangle are 5 and 9. Which of the following is a possible length of the third side of the triangle ? (A) 3 (B) 4 (C) 6 (D) 14