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In X standard, there are three sections A, B and C with 25, 40 and 35 students respectively.

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In X standard, there are three sections A, B and C with 25, 40 and 35 students respectively. The average marks of section A is 70%, section B is 65% and of section C is 50%. Find the average marks of the entire X standard.

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Hence, the average marks of the entire X standard is 61%.

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