In a competitive examination 5marks are awarded for each correct answer 2 marks are deducted for each incorrect answer and no mark for a question which is not attempted.
(a)Nishi appeared in the examination and attempted 12questions correct and 5questions correct and 5 question incorrect, however she didn’t attempted 3 question.what will her score.
(b) Rohan attempted 7questions correctly and 9 questions incorrectly. he did not attempt 4 questions.what will be his score?
please solve this step by step
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Answer:
b) 17 out of 100
Step-by-step explanation:
5marks for correct ans = 7*5=35
2marks deducted for = 2*9 = 18
35 - 18 = 17
no of questions = 9 + 7 + 4 = 20
5*20=100
17/100
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