Question

In a class test containing 10 questions, '3' marks are awarded for every correct answer
and (-1) mark is for every incorrect answer and 'O' for questions not attempted.
(1) Gopi gets 5 correct and 5 incorrect answers. What is his score?
(i) Reshma gets 7 correct answers and 3 incorrect answers. What is her score?
(ii) Rashmi gets 3 correct and 4 incorrect answers out of seven questions she attempts.
What is her score?
710ner​

Answer 1

Answer:

Gopi - 15 - 5 (5×1) = 10

Reshma - 7×3 = 21 -3= 18

reshmi- 3×3= 9-4 = 5

Answer 2

Answer:

Let the marks awarded for the correct answer =x

Therefore x=3

Let the marks awarded for the incorrect answer =y

Therefore y=(-1)

Step-by-step explanation:

1.)given 5 correct answers and 5 incorrect answers

Therefore

5x+5y=5(3)+5(-1)=15-5=10

2) given 7 correct answers and 3 incorrect answers

7x+3y=21-3=18

3) given 3 correct answers and 4 incorrect

3x+4y=9-4=5

I hope you understand that

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