Question

In a class test containing 10 questions, “3” marks are awarded forevery correct

answer and (–1) mark is for every in correct answer and “0” for questions not attempted.

i) Gopi gets 5 correct and 5 in correct answers. What is his score?

ii) Reshma gets 7 correct answers and 3 incorrect answers. What is her score?​

Answer 1

Here are the Solved answers

Step-by-step explanation:

Give,

The test contains 10 questions,

• 3 marks for CORRECT ANSWERS

• -1 marks for INCORRECT ANSWERS

• 0 marks for UNATTEMPTED QUESTIONS

i) Gopi has attended all the questions, and he has got 5 CORRECT and 5 INCORRECT answers.

Therefore, 5 × 3 = 15 (correct answers)

                  5 × (-1) = -5 (incorrect answers)

Calculating both the values, we get

⇒ 15 + (-5)

= 10

Therefore, the score of Gopi is 10.

ii) Reshma has attended all the questions, and she has got 7 CORRECT and 3 INCORRECT answers.

Therefore, 7 × 3 = 21 (correct answers)

                  3 ×( -1) = -3 (incorrect answers)

Calculating both the values, we get

⇒ 21 + (-3)

= 18

Therefore, the score of Reshma is 18.

Answer 2

Given :

Total number of questions = 10

3 Marks are awarded for every correct answer.

-1 mark is awarded for every incorrect answer.

0 for questions not attempted.

To find : Score of Gopi and Reshma

Solution :

(i) Score of Gopi :

Gopi gets 5 correct and 5 incorrect answers.

Score of Gopi = (5 × 3) + 5 × (-1)

Score of Gopi = 15 - 5

Score of Gopi = 10

Hence, Gopi's score is 10.

(ii) Score of Reshma : Reshma gets 7 correct answers and 3 incorrect answers.

Score of Reshma = (7 × 3) + 3 × (-1)

Score of Reshma = 21 - 3

Score of Reshma = 18

Hence,Reshma's score is 18.

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