In a exam there are 26 number of question. For one write question add 8 marks and for one wrong 5 marks subtract. One candidate answered all questions. His marks is 0. How many answers was correct?  Choices:
A) 9	B) 10	C) 11	D) 12	E) 13
let no. of right ques be x,   then no. of wrong ques will be= 26 - x   now, according to ques   8x - (26-x)5 = 0,   hence x=10...no. of right ques is 10   ANSWER:10
<result>B</result>
In a exam there are 26 number of question. For one write question add 8 marks and for one wrong 5 marks subtract. One candidate answered all questions. His marks is 0. How many answers was correct?