In following question, a number series is given with one term missing. Choose the correct alternative that will same pattern and fill in the blank spaces.
11, 10, (.), 100, 1001, 1000, 10001
A
101
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B
110
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C
111
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D
None of these
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Solution
The correct option is A 101 The given sequence is a combination of two seires : I. 11, (....), 1001, 10001 and II. 10, 100, 1000. In I, an extra zero is added between the two 1's. So, the missing number is 101.