In an examination, a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. If he attempts all 60 questions and secures 140 marks, the no of questions he attempts correctly is :
Choose the most appropriate option:
A) A)35
B) B)38
C) C)90
D) D)88
E) E)40
Let the number of correct answers be X.   Number of incorrect answers = (60 – X).   4x – (60 – x) = 140   =&gt; 5x = 200   =&gt; x = 40   Answer:40
<result>E</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 60 questions and secures 140 marks, the no of questions he attempts correctly is :