A unit test consisting of 15 questions was held in a class. Three marks were given for each correct answer and (-1) mark for every incorrect answer. Also, for those questions that were attempted, 1 mark was given.
(I) What is Liva's score if she attempted only 10 questions?
(II) James gets 8 incorrect and 7 correct answers. What is his score?
(III)Syria gets 6 correct and 5 incorrect answers. She also attempts the remaining questions. Calculate her score
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