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In an exam with 100 questions 2 marks are given for every correct answer and -0.5 for every incorrect answer and 0 for not attempted Alok got 20 questions wrong and left 26 questions unattempted if the passing marks are 100 at least how many questions should he answer right to passr |
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Answer» Answer: Step-by-step EXPLANATION: For 20 wrong question NEGATIVE marks will be 20 x -0.5 = -10 26 are left UNATTEMPTED . So remaining question:- 54 If he gets all 54 correct, marks for it will be - 54 x 2 = 108 So TOTAL marks - 108 - 10 = 98 So he will not PASS. He need to attempt 1 answer out of 26 left answer and get it right to pass. |
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