6. Myra attempted all questions in a competitive exam. 3 marks were given for a correct answer, 2 marks were
deducted for an incorrect answer and 0 marks for questions not attempted. If Myra gets a score of 100 marks
by attempting 60 questions correctly, find the total number of questions in the exam.
Answers
Answered by
2
Answer:
100
Step-by-step explanation:
60(3) =180 are the marks got for correct one.
now assuming she attempted all the questions.
180+p(-2)= 100 where p is nu of questions she got wrong.
so 80=2p
that means p=40
now 60 right and 40 wrong leads to 100 nu of total questions
Answered by
2
Answer:
MARKS FOR CORRECT ANSWER :- 3
MARKS FOR INCORRECT ANSWER :- -2
UNATTEMPTED ANSWER :- 0
100MARKS FOR 60 QUESTIONS
BUT , IT SHOULD BE 180 MARKS AS 3 MARKS FOR EACH CORRECT ANSWER.
NOW WE GET MORE 120 MARKS IS THERE
SO, WE GET HERE THAT TOTAL QUESTIONS IS 100
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