SOLUTION: a question paper has 8 questions with 4 options per question.in how many ways can one or more of those questions be attempted?
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Question 888509: a question paper has 8 questions with 4 options per question.in how many ways can one or more of those questions be attempted?
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
There are five ways to answer each question (one each for the options, and to leave the question blank).
Hence there are 5*5*...*5 = 5^8 ways to answer the questions. However we have to subtract 1 to account for not attempting any question. Ans = 5^8 - 1
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