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QK#001
Asked: 2021-11-19T18:53:20+05:30 In: , , , ,

There are n questions in an exam. For i=1,2,….,n, there are 2ⁿ⁻¹ students who answered 1 or more questions wrongly. If total number of wrong answers is 8191, then n will be

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0%(a) 12 ( 0 voters )
0%(b) 11 ( 0 voters )
0%(c) 10 ( 0 voters )
100%(d) 13 ( 2 voters )
Based On 2 Votes

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There are n questions in an exam. For i=1,2,….,n, there are 2ⁿ⁻¹ students who answered 1 or more questions wrongly. If total number of wrong answers is 8191, then n will be
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    1. Query Karo
      QK#001 Team Query Karo

      Answer is (d).

      Answer is (d).

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