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In a class test containing 10 question , 5 marks and awarded for every correct answer and (-2)marks are awarded for everyand o for each question not attempted. Ravigets 4 correct and 6 incorrect answers. What is hisscore ? |
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Answer» In a class test CONTAINING 10 questions, 5 marks are awarded for every correct answer and (−2) for each wrong and 0 for not attempted questions. We will just forget unattempted questions as it will give her 0 marksSo let us say for any STUDENT who gave x right questions and y wrong questions then total marks is given as 5x+(−2)y i.e5x−2y total marks.1) MOHAN GETS 4 correct and 6 incorrect so total score 5×4−2×6 i.e 8marks2)RESHMA gets 5 correct anf 5 incorrect do total marks scored is equal to 5×5−2×5 i.e 15marks3)Heena gets 2 correct and 5 incorrect. She attempts only 7 questions so for the remaining 3 questions she will score zero marks.So total marks scored by Heena is 5×2−5×2+0 i.e 0marks |
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