In objective test a correct ans score 4 marks and on a wrong ans 2 marks are ---. a student score 480 marks from 150 question. how many ans were correct?	Choose the most appropriate option:
A) 120
B) 130
C) 110
D) 150
E) 180
let x be the correct answer and y be the wrong answer   so the total number of questions is (x+y)=150   =&gt;4x-2y=480   =&gt;6x=780   hence x=130   ANSWER:130
<result>B</result>
In objective test a correct ans score 4 marks and on a wrong ans 2 marks are ---. a student score 480 marks from 150 question. how many ans were correct?