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Question
A question paper has 6 questions. How many ways does a student have if he wants to solve at least one question?
Solution
Every question is ‘SOLVED’ or ‘NOT SOLVED’.
There are 6 questions.
Number of outcomes = 26
This number includes the case when the student solves NONE of the questions.
Required number = 26 – 1 = 64 – 1 = 63
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