In an examination,a student scores 4 marks fo | vedclass

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Question

(B) Let the number of correct answers be $x$.Then,the number of wrong answers is $(60 - x)$.According to the problem,the total marks scored is $130$.T

Vedclass · Accepted Answer

$38$

Vedclass · Answer

(B) Let the number of correct answers be $x$.Then,the number of wrong answers is $(60 - x)$.According to the problem,the total marks scored is $130$.The equation is: $4x + (60 - x)(-1) = 130$.Expanding the equation: $4x - 60 + x = 130$.Combining like terms: $5x - 60 = 130$.Adding $60$ to both sides: $5x = 190$.Dividing by $5$: $x = 38$.Therefore,the student attempted $38$ questions correctly.

In an examination,a student scores $4$ marks for every correct answer and loses $1$ mark for every wrong answer. If he attempts in all $60$ questions and secures $130$ marks,the number of questions he attempts correctly is

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