In a test + 3 marks are given for every correct answer and minus 1 marks for every incorrect answer Reshma attempted all the questions and scored + 20 marks though she got 10 correct answers find how many incorrect answers has she attempted and how many questions were in the test
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She got 10 correct answers and every correct answer has 3 marks so total number of marks = 10×3=30
It is mentioned that she had scored 20 marks so that=30-20 =10 marks are negative..
Total number of question will be 10 + 10 equals to 20
She got 10 correct answers and every correct answer has 3 marks so total number of marks = 10×3=30
It is mentioned that she had scored 20 marks so that=30-20 =10 marks are negative..
Total number of question will be 10 + 10 equals to 20
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