in a class test + 5 marks were awarded for every correct answer and -2 marks for every wrong answer Ratna answered all the questions but got only 12 of them correct if your score was 46 how many did she answer wrong
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Step-by-step explanation:
12*5 + (+2x) = 46
60 + (-2x) = 46
-2x = 46-60
x = -14/2
x = 7
totally 7 incorrect answers
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