Find out the Number of Wrong Answers given by Candidate

In an exam each correct answers score 5 marks and each wrong answers reduces 2 marks. A candidate got 24 marks by answering 12 questions correctly. If he attempted all the questions, how many answers were wrong?
(Provide the detailed steps also)
a) 12
b) 18
c) 14
d) 20

Showing Answers 1 - 7 of 7 Answers


  • Dec 6th, 2016

b) 18

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  • Dec 9th, 2016

No of questions answered correctly=12
Total marks =12×5=60
But scores is 24
So sub 60-24=36
If we divide this 36 /2 ie no of questions wrong =18

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Neha Singh

  • Apr 20th, 2017

No. of correct answers = 12
There is 5 marks allotted for each correct answer
If he gets only 24 marks in total, then 24 is to be subtracted from 60
60-24=36 which is the all total no. of incorrect deducted marks
2 marks are allotted for each incorrect answer
36/2=18 answers were wrong.

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  • May 11th, 2017


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  • May 24th, 2017

5*12 - 2y = 24, 60-24 = 2y , y = 18

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  • Aug 18th, 2017

Each correct carry 5 marks, and wrong carries -2 marks.
Number of question with correct answer = x
Number of questions is wrong = y
Total score in the exam = 5*x-2*y =r
As per data, x=12, y=?, r=24

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  • Aug 22nd, 2017


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