if for correct answer teacher is giving 10 marks and for incorrect answer teacher is giving -1 marks for not attempting picture is giving nothingthen if a student score 20 marks and she got 10 answers correct after attempting all what number of questions has attempted wrong

if for correct answer teacher is giving 10 marks and for incorrect ans

1.	if for correct answer teacher is giving 10 marks and for incorrect answer teacher is giving -1 marks for not attempting picture is giving nothingthen if a student score 20 marks and she got 10 answers correct after attempting all what number of questions has attempted wrong
Answer» Step-by-step explanation:Marks given for correct ANSWER=10Marks given for incorrect answers=-1Marks for not ATTENDING pictures=0If a student give 10 correct answers=10×10=100marksBut he got only 20 marks Marks DEDUCTED =100-20=80marksFor every incorrect answer he got -1So he attempted 80 questions WRONGLY.