In a class test +3 marks are given for every correct answer ,-2 for every wrong
answer and 0 for not attempting. i) Raja scored 20 marks. If he got 12 correct
answers, how many questions did he attempt in all?
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Answer:
12*3 FOR CORRECT = 36 MARKS -2 FOR WRONG 2 *8 = 16
TOTAL QUESTIONS ANSWERED ARE 20
Step-by-step explanation:
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