In a class test, 5marks are given for each correct answer and -2 for each incorrect answer aaryav answered all the question and scored 30 marks, though he got 10 correct answers.find the number of question Aaryav answered incorrectly
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He answered 10 incorrectly
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Step-by-step explanation:
5 marks for correct
-2 for incorrect
he scored 30
and gave 10 correct answer
that means 5×10=50-30=20
so he lost 20 marks for incorrect
so -2×10=20
so he gave 10 incorrect answers
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