Question

In a class test containing 10 questions, '3' marks are awarded for every incorrect answer and'0'for questions not attempted
1)Gopi gets 5 correct and 5 incorrect answers. what is his score?
2) Reshma gets 7 correct answers and 3 incorrect answers. what is her score?
3) Rashmi gets 3 correct and 4 incorrect answers out of seven questions she attempts. What is her score? ​

Answer 1

Step-by-step explanation:

) 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 =5×3+5×(−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 =7×3+3×(−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 =3×3+4×(−1)

=9−4

=5