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Rohit scored an average marks of 55 in five subjects - English, Hindi, Maths, Science and Social Science. If he scored 45, 43, 58 and 44 in English, Hindi, Maths and Science respectively, what was his score in Social Science?

Rohit scored an average marks of 55 in five subjects - English, Hindi, Maths, Science and Social Science. If he scored 45, 43, 58 and 44 in English, Hindi, Maths and Science respectively, what was his score in Social Science? Correct Answer 85

⇒ Let number in Social science be x

⇒ Average = (sum of observations)/(number of observations)

⇒ 55 = (45 + 43 + 58 + 44 + x)/5

⇒ 275 = 190 + x

⇒ x = 85

∴ Rohit scored 85 in social science

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