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CAT-2007-Previous Years Paper

Question
20 out of 25
 

Consider the set S = {2, 3, 4, ...., 2n + 1}, where n is a positive integer larger than 2007. Define X as the average of the odd integers in S and Y as the average of the even integers in S. What is the value of X – Y?



A

B

C 2008

D 0

E 1

Ans. E

S = { 2,3,4,…2n +1}

Total number of elements in S = 2n

Therefore X – Y

CAT-2007-Previous Years Paper Flashcard List

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