Question

In a class test containing 15 questions, 4 marks are given for every correct answer and
(-2) marks are given for every incorrect answer. (i) Bharathi attempts all questions but
only 9 answers are correct. What is her total score? (ii) One of her friends Hema attempts
only 5 questions and all are correct. What will be her total score?​

Answer 1

Answer:

Scores of Bharathi and hema are 24 , 20 respectively. Given that, In a class test containing 15 questions, 4 marks are given for every correct answer and (–2) marks are given for every incorrect answer. Case(1) Bharathi attempts all questions.

Step-by-step explanation:

Marks given for one correct answer =4

So, marks given for 9 correct answers are

=4 X 9 = 36

Marks given for one incorrect answer

=-2

So, marks given for 6=(15-9) incorrect answers

= (-2) X 6 =-12

Therefore, Gurpreet's total score is

= 36 - 12 = 24

Answer 2

Given:-

• Total questions = 15
• Marks given for every correct answer = 4 marks.
• Marks given for every incorrect answer = (-2) marks

To Find:-

• Total score of Bharathi
• Total score of Hema

Solution :-

In Case of Bharathi :-

$\qquad$☀️Total questions attempted by Bharathi is 15 questions and total correct answers are 9 answers.

Marks of her 9 correct answers :-

$\qquad$= 9 × 4

$\qquad$=36 Marks

It's given, total incorrect answers are 6

Marks of her 6 incorrect answers :-

$\qquad$= 6 × (-2)

$\qquad$= -12 Marks

$\qquad$☀️Total marks = Marks of her 9 correct answers + Marks of her 6 incorrect answers

$\qquad$❏Total marks of Bharathi

$\qquad$= 36 + (-12)

$\qquad$= 36 - 12

$\qquad$= 24 marks

• Hence, total score of Bharathi is 24 marks.

In Case of Hema :-

$\qquad$☀️Total question attempted by Hema is 5 questions.Since all the questions attempted by Hema are correct, so she would not get marks for incorrect answers.

$\qquad$❏ Total marks of Hema

$\qquad$= 5 × 4

$\qquad$= 20 marks

• Hence, total score of Hema is 20 marks.

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