in class test compromising of 12 questions and all 5 marks are awarded for every correct answer and 2 marks are dedicated to every in correct answer and marks a...
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hey bro!
what r u asking?
complete ur ans first nd than ask again......
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Answer:
12(5x-2x)=12×5
12(3x)=60
3x=60/12
X=60/6
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