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Find the next number in the given number series? 11, 5.5, 10, 6.5, 9, ?

Correct Answer: 7.5

Explanation:

The given number series follows a pattern that


11


11 - 5.5 = 5.5


5.5 + 4.5 = 10


10 - 3.5 = 6.5


6.5 + 2.5 = 9


9 - 1.5 = 7.5


 


Hence, the next number in the given number series is 7.5.


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