A question paper contains 4 questions,each ha | vedclass

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Question

(C) For each question,there are $4$ choices to answer it,plus $1$ choice to leave it blank. However,the problem states the candidate answers the quest

Vedclass · Accepted Answer

$624$

Vedclass · Answer

(C) For each question,there are $4$ choices to answer it,plus $1$ choice to leave it blank. However,the problem states the candidate answers the questions. If we assume the candidate must choose one of the $4$ alternatives for each question,there are $4$ options per question. For each of the $4$ questions,the candidate has $5$ possibilities: either choose one of the $4$ answers or choose not to answer the question. Total ways to answer the $4$ questions (including leaving some blank) is $5^4 = 625$. Since the candidate must answer 'one or more' questions,we must exclude the case where the candidate leaves all $4$ questions blank. Number of ways = $5^4 - 1 = 625 - 1 = 624$.

$A$ question paper contains $4$ questions,each having $4$ alternative answers. The number of ways that a candidate can answer one or more questions is

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