8.IN a class test containing 10 question,5 marks are awarded from every correct answer and (- 2) marks are awarded fod every incorrect answer and 0 for question not attempted.
(i) Ravi gets five correct answers and five incorrect answer,what is his score?
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5x5 + 5(-2) = 25-10 = 15
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The total marks for all the correct answers of 10 questions = 10*5= 50marks
For 5 correct answers the score=25 marks and for 5 incorrect answers the mark= (-2)*5=-10marks.
His total score=25+(-10)= 25-10 =15marks
So Ravi got 15 marks out of 50.
For 5 correct answers the score=25 marks and for 5 incorrect answers the mark= (-2)*5=-10marks.
His total score=25+(-10)= 25-10 =15marks
So Ravi got 15 marks out of 50.
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