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?

• let x answers are correct and y answers are wrong...
  then x+y=26 ---------(1)
  and 8x-5y=0----------(2)
  solving above two equations
  x=10
  y=16
• 10 years agoHelpfull: Yes(28) No(0)
• let he answered x correct ,
  then
  8*x-(26-x)5=0
  x=10
  10 answers were correct
• 10 years agoHelpfull: Yes(6) No(0)
• 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
• 10 years agoHelpfull: Yes(2) No(0)
• if we assume that he answered 10 questions correct...then
  the no.of in correct questions will be....=16
  so the right sol will be=10*8=>80
  & the right sol will be=16*5=>80
  
  so the final score of the student is...=
  80-80=>0
  so final answer is 10 :)
• 10 years agoHelpfull: Yes(1) No(3)
• 10 correct and 16 wrong 10+16=26
  10*8 + 16*(-5) = 0
  
• 10 years agoHelpfull: Yes(0) No(0)
• total no of correct question=10,marks obtained for right solution=10*8=80
  total no of wrong answered question=16,hence negative marks=16*5=80
  final marks=80-80=0
  ans=10
• 10 years agoHelpfull: Yes(0) No(0)
• Let no. of correct answers be x, and wrong answers be y.
  Then ATQ,
  x+y=26 ----->eq. A
  total score equation
  8x-5y=0
  => y=8x/5
  On Substituting in eq. A and solving for x, we get
  13x/5= 26
  Hence, x=10
  
  
• 10 years agoHelpfull: Yes(0) No(0)
• 8*10=80
  5*16=80
• 10 years agoHelpfull: Yes(0) No(0)
• if correct answers = 10
  then total marks will be 80
  nd then left are incorrect = 16 , 16*5 = 80..
  hence marks will be 0
  so answer is 10 and 15...
• 10 years agoHelpfull: Yes(0) No(0)
• x=no.of correct answers,y=no of wrong answers
  x+y=26
  8x-5y=0
  after solving these equtions
  x=10
  y=16
  
  
• 10 years agoHelpfull: Yes(0) No(0)
• x+y=26
  8x-5(26-x)=0
  x=10
  y=16
• 10 years agoHelpfull: Yes(0) No(0)
• a. 10
  b. 12
  c. 11
  d. 13
  Ans: A
  Explanation:
  Take options and check. If 10 are correct, his score is 10 x 8 = 80. But 16 are wrong. So total negative marking is 16 x 5 = 80. So final score is zero.
• 10 years agoHelpfull: Yes(0) No(0)
• @kv plz send me tcs previous yr question at singh.ashima393@gmail.com..
  its urgent
• 10 years agoHelpfull: Yes(0) No(1)
• for 5 correct ans marks are 40
  for 8 incorrect ans marks are 40
  i.e totals um for 13 ques in 0
  hence 10 correct ans
• 9 years agoHelpfull: Yes(0) No(0)
• Ans is 10
  As 8x10=80==(26-10)X5
• 9 years agoHelpfull: Yes(0) No(0)