The correct version of the ques:
k is not equal to 0 , 1 or -1
Is 1/k>0 ?
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Source: Beat The GMAT — Data Sufficiency |
answer is A
question: k is not equal to 0, 1, -1. Is 1/K >0?
1) 1/(K-1) > 0 implies that k has to be bigger than 1.
therefore 1 is sufficient
2) 1/(k+1) > 0. k could be between 0 and -1 and still satisify the requirement. or k>1. therefore, not sufficent
what is the OA?
question: k is not equal to 0, 1, -1. Is 1/K >0?
1) 1/(K-1) > 0 implies that k has to be bigger than 1.
therefore 1 is sufficient
2) 1/(k+1) > 0. k could be between 0 and -1 and still satisify the requirement. or k>1. therefore, not sufficent
what is the OA?
