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The marks obtained by a student of class Xl in the first and second terminal examination are 62 and 48 respectively. Find the minimum marks he should get in the annual examination to have an average of at least 60 marks. |
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Answer» Let ‘x’ be the marks obtained by student. Then (62 + 48 + x)/3 ≥ 60 ⇒ 110x + x ≥ 180, x ≥ 70 |
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