In a test consisting of 10 questions, each student gets +3 marks for every correct answer and −2 marks for every incorrect answer. Each question must be answered. Sara gets 2 correct and 8 incorrect answers. What’s her score?
Answers
i) 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
Step-by-step explanation:
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Answer:
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