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Here is the Solution

 

Find the missing Number!

10, 9, 50, 90, 70, __ , 69

SOLUTION : There can be multipe solutions to this problem. The logic goes as, 10 when written in words has 3 alphabets, nine has 4, fifty has 5 and so on.

Going by this logic, the missing number should have 8 alphabets, e.g. 52 (fifty two), 51 (fifty one) etc.

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