In a test, (+10) marks are given for
every correct answer and (-4) marks
are given for every incorrect answer.
Seema answered all the questions and
scored 180 marks though she got 20
m correct answers. How many incorrect
answers had she attempted?
Answers
Answered by
0
Step-by-step explanation:
20(10)+X(-4)=180
200-4x=180
4x=20
X=5
no.of incorrect answers she had attempted is 5
Answered by
0
Answer:
20 are incorrect
Step-by-step explanation:
20*10=200 for correct answers
200-180=20for incorrect answers
20are incorrect and (-4)are given for incorrect answers
20*-4 = (-80)
200-80 = 120 are the answers which she attempted incorrect
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