In a class test containing 15 questions, 4 marks are given for every correct answer and
(-2) marks are given for every incorrect answer. (1) Bharathi attempts all questions but
only 9 answers are correct. What is her total score? (i) One of her friends Hema attempts
only 5 questions and all are correct. What will be her total score?
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Answer:
total number of questions = 15
marks given by a correct answer = 4
marks deduced by each wrong answer = 2
correct answers by bharathi = 9
wrong answers by bharathi = 15 - 9 = 6
she got 9*4 marks and 6*(-2) marks are deduced from these marks
so total marks = 28-12 = 16 marks
total marks of hema = 5*4 = 20 marks
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