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Quantitative Aptitude

Averages

Consider the ...

Question

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

A

1

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B

\frac{n}{2}

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C

\frac{(n + 1)}{2 n}

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D

2008

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Solution

The correct option is A 1
Option A is the correct answer. Check the video for the approach.

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Similar questions

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

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(ii) n is an even integer

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