in a test ,+3 marks are given correct answer -1 marks are given for every incorrect answer soun attempted all the question are scored +20 marks though she got 10 correct answer . How many incorrect answer has she attempted
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0
Answer:
10 incorrect questions.....
.....
Answered by
1
Sonu got 10 questions wrong.
Step-by-step explanation:
for correct answer +3 marks
for incorrect answer -1 marks
Sonu got 20 marks by attempting 10 correct answers
so ,by that we can understand 10 correct answers means 10*3 she should get 30 marks but she got 20 marks .means 10 marks she loss so 10 questions she got incorrect.
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