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There were 120 multiple choice questions.a candidate was given 1mark for each correct answercand penalised ¼ mark for every wrong answer.the candidate answered all the questions and scored 80marks.find the number of correct answers given by the candidate.

Respuesta :

bireland203
120-1/4x=80

-1/4x=-40

1/4x=40

x= 10

120-1/4(10)=80

80=80

80 correct answers 

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