Legit Reviews

I am taking Kaplan's GRE review since it was bought as a gift for me. I am stuck on a problem though. I can't understand why this question doesn't have both column A and B equal to each other.



Anyone have any clue. I can't believe that they wouldn't have already corrected it if the issue was a typo.

They are reciprocals aren't they or are they one of the tricky POS gimmicks that these tests are?

I'm not sure exactly what you're asking but I assume it has to do with the equation 1/x/x/1=(1/x)/(x/1)
To simplify that equation, thus making life easier with the calculations, you can recognize that numerator (1/x) divided by a denominator (x/1) is equal to the numerator (1/x) multiplied by the reciprocal of the denominator (1/x) or (1/x)*(1/x)=(1/x)^2

In other words, 1/x/x/1 = (1/x)/(x/1) = (1/x)*(1/x) = (1/x)^2
So now, if x=1, the answer is (1/1)^2 = 1^2 = 1
So now, if x=2, the answer is (1/2)^2 = (1/4)

If that's not what you wanted, you'll have to clear up what you mean by the columns and what your choices are for an answer.
Hope I could help!

I see. Thank you.