Question

.1)In a class text containing 10 questions ,’3’marks are awarded for every correct answer and (-1) mark is for every incorrect answer and ‘0’ for questions not attempted i)gopi gets 5 correct and 5 incorrect answers .What is his score?ii)Reshma gets 7 correct answers and 3 incorrect answers .What is his score ?iii)Reshma gets 3 correct answers and 4 incorrect answers out of seven questions she attempts .What is her score?​

Answer 1

Answer:

Gopi gets 15-5=10marks

Step-by-step explanation:

5 correct so 5×3 =15

5 wrong so 5×(-1)=-5

=10 marks

Answer 2

Gopi gets 5 correct and 5 incorrect answers

To find his score

Since for every correct answer 3 marks are awarded '

For every incorrect answer (-1) marks are awarded '

Total Score = 5 \times 3 + 5 \times (-1)

= 15 - 5

= 10

ii) Reshma gets 7 correct answer and 3 incorrect answers

To find his score

Since for every correct answer 3 marks are awarded'

For Every Incorrect Answer ' (-1) marks are awarded '

Total score = 7 \times 3 + 3 \times (-1)

= 21 - 3

= 18

iii) Reshma gets 3 correct answer and 4 incorrect answers

To find his score

Since for every correct answer 3 marks are awarded '

For every incorrect answer (-1) marks are awarded '

Total score = 3 \times 3 + 4 \times (-1)

= 9 - 4

= 5

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