Question

in an examination hall of 100 questions, for every correct answer 4 marks and for every wrong answer 2 marks are deducted and no marks for not attempting the question. if raju answered 85 questions out of them 17 wrong what is his marks​

Answer 1

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Here is your answer

Let the number of correct answer is x

So the number of wrong answer is 60- x

ATQ

\begin{lgathered}4 \times x - 1 \times (60 - x) = 130

4x - 60 + x = 130

4x + x = 130 + 60

5x = 190

x = \frac{190}{5}

x = 38\end{lgathered}

4×x−1×(60−x)=1304x−60+x=1304x+x=130+6

05x=190x=5190x=38

Hence the number of correct answer is 38

Hope it helps you

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