In a competitive exam 3 marks are given for every correct answer and 1 mark deducted for every incorrect answer. Raju copied some answers from Rema and answer all the questions .He scored 20 marks though he got 10 correct answers. How many incorrect answers had he attempted? What values are promoted in the question.
Answers
Answered by
1
Answer:
10
Step-by-step explanation:
Answered by
1
Answer:
answer is 10 because
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