in a class test containing 4 marks are given for following correct answer and -2 marks for every incorrect answer Nikunj attend all the question he got 10 marks however his 10 questions for correct find how many questions were incorrect
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Answer:
15 questions incorrect
Step-by-step explanation:
10 correct question contain 4 marks
so total marks 40 from which the marks of incorrect answer is subtracted that he will obtain 10 marks
therefore 40-10=30 so from this eqaution we get to know that 30 marks are subtracted for incorrect answer.
A.T.Q
2 marks are subtracted for 1 incorrect answer
therefore 30 marks are subtracted for 30/2 incorrect answer
so 15 answer are incorrect
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