45.In a test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer. Ankita answered all the questions and scored 30 marks though she got 10 correct answers.
(a) How much marks did she scored for correct answers?
(b) How much marks did she lost for incorrect answers?
(c) How many incorrect answers had she given?
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is this question of class 8
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