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Gurome's Quant Blog Series - Arithmetic A8


Following is the correct solution to the last question posted here in the Quant Blog Series.


Explanation:

The third number is 70, after that the series of numbers are 65, 67.5, 66.25, 66.875…

This trend will follow and we can see that the integer part of the next number in the series is always coming to be 66. So, the integer part of the 2008th number should be 66.


The correct answer is (D).


Note:

In such types of questions, the only way we can solve is by calculating the average of two numbers until we reach a point where we get the answer very close to the previous answer. So, when you get an answer close to the given one, look at the given answer choices and choose the most appropriate one as the correct answer.


Difficulty level: 500


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Posted by kalyani at Jul 31, 2010 7:55:28 AM
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