in a class test containing 15 questions 4 marks are awarded a -2 marks are given for incorrect answer I) gurpreet attempt all questions of 9 are correct what is total score? ii) one of her get 5 answer correct what will be her score
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Number of questions = 15
Mark for correct answers = 4
Mark for incorrect answer = -2
(i) Correct answers = 9
Marks = 9x4 = 36 marks
Incorrect answers = 6
Marks = 6x-2 = -12 marks
Total marks = 36-12
= 24 marks
(ii) Correct answers = 5
Marks = 5x4 = 20 marks
Incorrect answers = 10
Marks = 10x-2 = -20 marks
Total marks = 20-20
= 0 marks
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