In a class test containing 15 questions, 4 marks are given for every correct answer and
(-2) marks are given for every incorrect answer. (i) 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:
(I) 9 answers are correct so score is 9×4 =36
and 6 are wrong so 6×-2=-12
so score is 36+(-12)=36-12=24
(ii) 5 questions are correct so score is 5×4=20
so score is 20
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