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Arun scored 36 marks in English, 44 marks in Hindi, 74 marks in mathematics and x marks in science.

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Arun scored 36 marks in English, 44 marks in Hindi, 74 marks in mathematics and x marks in science. If he has secured an average of 50 marks, find the value of x.

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It is given that

Average marks in 4 subjects = 50

So the total marks = 50 (4) = 200

We know that

36 + 44 + 75 + x = 200

On further calculation

155 + x = 200

So we get

x = 200 – 155

By subtraction

x = 45

Therefore, the value of x is 45.

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