in a class test madhuri got 36 marks , she had written 12 questions correct. each correct answer carries 5 marks and wrong answer carries -3 marks .
i) how many wrong answer she would have written ?
ii) what marks will she get if she writes 10 correct answer and 10 wrong answer ?
plz answer
Answers
Answered by
3
Answer:
1)3 wrong answers
2) 20
Step-by-step explanation:
1 ) number of correct questions.= x
number of wrong questions = y
x + y =12
5x - 3y = 36
on solving above equations
x =9
y = 3
no.of wrong answers attempted = 3
2)
10(5) - 10(3) = 50-30=20
Answered by
2
Answer:
Do this by your self
Step-by-step explanation:
Teacher gave this as your assignment so please do this by your self
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