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. (1) 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?
23​

Answer 1

Answer:

Bharathi scores = 24 marks

Hema = 20 marks.

Explanation:

Given:

Total Questions = 15. There are +4 marks for a correct answer and -2 marks for incorrect one.

i) For Bharathi, all attempted, but 9 are correct. Which means that 15 - 9 = 6 are incorrect.

→Total score = 9(+4) +6(-2)

→Total score = 36 - 12 = 24 marks.

ii) Hema attempted only 5 and all are correct. It means she'll not suffer from negative marking for incorrect answers. So,

→ Total score = 5(+4) = 20 marks

Answer 2

Answer:

Bharathi scores = 24 marks

hema scores = 20 marks .

Explanation:

Given :

Total Questions :

= 15. There are +4 marks for a correct answer and -2 marks for incorrect one.

1. For Bharathi ,all attempted, but 9 are correct . Which means that 15 - 9 = 6 are incorrect.

➡️ Total score = 9(+4)+6(-2)

➡️Total score = 36 - 12 = 24 marks.

2.Hema attempted only 5 and all are correct. It means she'll not suffered from negative marking for incorrect answers.

so,

➡️ Total score = 5(+4)= 20 marks