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)
Options:
a) 12
b) 18
c) 14
d) 20

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

Neha Singh

Apr 20th, 2017

No. of correct answers = 12
There is 5 marks allotted for each correct answer
12×5=60
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.

Priyanka

May 11th, 2017

18

perumal

May 24th, 2017

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

Anjali

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

## Find out the Number of Wrong Answers given by Candidate

(Provide the detailed steps also)

Options:

a) 12

b) 18

c) 14

d) 20

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