Asked by TUHITUHI
in an examination there are 180 questions , 4 marks is given for each correct answers and 1 marks is subtracted for each wrong answers . if a boy scores 220 marks find the no of correct and wrong answers ???
Answers
Answered by
Steve
If there are c correct and w wrong answers,
c+w=180
4c-w = 220
c=80
w=100
check: 4*80-100=220
c+w=180
4c-w = 220
c=80
w=100
check: 4*80-100=220
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.