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1). 652). 663). 684). 70 |
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Answer» As PER the given data, Let the required MEAN SCORE be x, Then 20/100 × 60 + 30/100 × 40 + 50/100 × x = 58 ⇒ 1200 + 1200 + 50X = 5800 ⇒ 2400 + 50x = 5800 ⇒ 50x = 5800 - 2400 = 3400 ⇒ x = 3400/50 = 68 |
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