in a test 3 marks are given for every correct answer and 1 mark are given for every incorrect answer Rekha attempted all questions and got 7 answers correcta and three answers wrong what is her total score
Answers
Answer:
24
Step-by-step explanation:
marks for correct answer=3
marks for incorrect answer=1
total questions=7+3=10
total marks for 10 questions=10×3=30
marks for 7 correct answers=7×3=21
marks for 3 incorrect answers=3×1=3
her total score=21+3=24
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Answer:
Marks for every correct answer =
Marks for every wrong answer =
(i) According to question,
Marks obtained by Radhika =
Number of correct answers =
Marks obtained for correct answers =
Marks obtained for incorrect answers = Total marks – Marks obtained for correct answers
Number of incorrect answers =
Therefore, Radhika attempted 8 questions incorrectly.
(ii)
According to question,
Marks obtained by Mohini =
Number of correct answers =
Marks obtained for correct answers =
Marks obtained for incorrect answers = Total marks – Marks obtained for correct answers
Number of incorrect answers =
Therefore, Mohini attempted 13 questions incorrectly.