In a class test of 20 qustions, 5 marks are given for every correct answer, -3 marks are given for every incorret answer and no marks are given for qustions that are not attempred. simran scores -3 marks. if she answered 3 qustions corretly, how many did she get wrong? how many did she not attempt?
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Answer:
Simran gives 6 answers incorrect and she not attempts 8 questions
Explanation:
How to solve :
If she attempt 3 questions correctly, then she got 15 marks for this but she secured - 3 marks in exam. it means we have to divide 15 by 3 until the answer is - 3 it will come only when she attempts 6 questions incorrectly (-3 ×6 = -18)
( -18 +15 = - 3), then we know that Simran attempts 9 questions (either will be correct or not) we subtract 9 from total questions 20 the anwer will come
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Answer:
she got 6 incorrect answer and she didn't attend 8 questions
Explanation:
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