A test contains 10 true false questions. A correct answer is awarded 2 markw, a wrong answer -1 and a question not answered is awarded 0. A Student attend 7 questions and get 8 marks. how many questions did the student answer correctly?
(Do not solve through x,y term)
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Answer:The student answered 5 answers correctly
Step-by-step explanation:
Correct ans =5
Marks for correct answer =5*2=10
Incorrect answers=2
Marks for incorrect answers =2*-1=-2
Total Marks = 10-2=8
Total questions answered =5+2=7
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