Advertisements

Word Problem 1

Problem 1: In an exam a candidate scores 2 marks for a correct answer and loses 1 mark for every wrong answer. If he attempts for 60 questions, and gets a score of 39, how many answers he opted as correct?



Solution:

There are 60 questions to be answered in the exam!

Let us suppose;

Correct Answers =y

\Rightarrow Incorrect Answers =60-y

Score;

Correct Score =2 \times y= 2y

Incorrect Score = 1 \times (60-y)= 60-y

So,

Total Score = Correct Score - Incorrect Score

\Rightarrow Total Score = 2 y -(60-y)

\Rightarrow Total Score = 3 y -60

But ;

Total Score = 39

\Rightarrow 39= 3y-60

\Rightarrow 3y=99

\Rightarrow y=33

So, Correct answers were 33

(math portion of job test)

  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  

You may submit a MCQ or maths problem with solution tips here in the comment box below! If you could not solve anyone, you may submit a MCQ or maths problem without solution as well. We will try our level best to solve it for you!

Your email address will not be published.

You may use these <abbr title="HyperText Markup Language">HTML</abbr> tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>

All original content on these pages is fingerprinted and certified by Digiprove
Insert math as
Block
Inline
Additional settings
Formula color
Text color
#333333
Type math using LaTeX
Preview
\({}\)
Nothing to preview
Insert