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 Author: questioner [ Mon Jun 24, 2013 11:19 am ] Post subject: GMAT Symbols If k is a positive integer, then k@ is defined as the product of all the fractions of the form 1/S, where S is a positive integer not greater than k. What is the value of 5@/4@?A. 1/5B. 4/5C. 1D. 5/4E. 5(A) Since k@ is defined as the product of all fractions 1/S, where S ranges from 1 to k, inclusive,5@ = (1/1) × (1/2) × (1/3) × (1/4) × (1/5)4@ = (1/1) × (1/2) × (1/3) × (1/4)5@/4@ =(1/1) × (1/2) × (1/3) × (1/4) × (1/5) (1/1) × (1/2) × (1/3) × (1/4)All of the fractions cancel out except for the 1/5, so the correct answer is choice (A).----------Can we understand "A is the product of X & Y" as "A = X × Y", not that A is some other combination forms of X and Y?

 Author: Gennadiy [ Mon Jun 24, 2013 11:25 am ] Post subject: Re: GMAT Symbols Quote:Can we understand "A is the product of X & Y" as "A = X × Y", not that A is some other combination forms of X and Y?"A is the product of X & Y" means exactly A = X × Y .

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