Maths-
General
Easy
Question
In a certain test there are n questions. In this test 2n–i student gave wrong answers to atleast i questions where i = 1, 2, 3 ..... n . If the total no. of wrong answer given is 2047. Then n is equal to- - 10
- 11
- 12
- 13
- 10
- 11
- 12
- 13
The correct answer is: 11
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