If z=1+1/x where x>1, then z could equal to which of the following?
a. 1/5
b. 5/8
c. 9/7
d. 15.11
e. 8/7
MATH
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Hi namokshi,
From your post, I'm going to assume that the equation that you included is meant to be:
Z = 1 + (1/X) and X > 1
As X increases, the value of (1/X) decreases  so we'll be adding a potentially small fraction to 1. We can actually TEST THE ANSWERS here  and use the answer choices to our advantage (by considering the DENOMINATORS of each of the 5 answers). If X = 7, then we'd end up with Z = 1 + (1/7) = 8/7
Final Answer: E
GMAT assassins aren't born, they're made,
Rich
From your post, I'm going to assume that the equation that you included is meant to be:
Z = 1 + (1/X) and X > 1
As X increases, the value of (1/X) decreases  so we'll be adding a potentially small fraction to 1. We can actually TEST THE ANSWERS here  and use the answer choices to our advantage (by considering the DENOMINATORS of each of the 5 answers). If X = 7, then we'd end up with Z = 1 + (1/7) = 8/7
Final Answer: E
GMAT assassins aren't born, they're made,
Rich

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