In an examination, a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. If he attempts all 50 questions and secures 130 marks, the no of questions he attempts correctly is :
Choose the correct option:
A) A)36
B) B)38
C) C)90
D) D)88
E) E)37
Let the number of correct answers be X.   Number of incorrect answers = (60 – X).   4x – (50 – x) = 130   =&gt; 5x = 180   =&gt; x = 36   36nswer:36
<result>A</result>
In an examination, a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. If he attempts all 50 questions and secures 130 marks, the no of questions he attempts correctly is :