math

A test consists of 120 questions. Each correct answer, each wrong answer and unanswered question in the test carry 1 Mark, 0.5 Mark and 0.25 Mark respectively. Find the maximum number of questions that the candidate could have answered wrongly in the test, if he scores 50 marks in it.

Please explain. Thank you

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  1. 45

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  2. nickey score 21 marks out of 30 for her mathematics test what fraction did she get correct

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