in a class test +4 marks are given for every correct question and -2 are given for every in correct answer. Neha attempts all the questions but only 20 answers are correct. What is her total score?
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Answer:
her total score is 80 marks
Step-by-step explanation:
marks given for one correct answer:- +4
marks given for one incorrect answer:-(-2)
marks for giving 20 correct answer- 20×4
= 80
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