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There are 35 mobile phones in a box, out of which the average weight of 12 mobile phones is 50 grams and the average weight of 11 mobile phones is 40 grams and the average weight of the remaining mobile phones is 45 grams, then find the average weight of all mobile phones. (approx.)

There are 35 mobile phones in a box, out of which the average weight of 12 mobile phones is 50 grams and the average weight of 11 mobile phones is 40 grams and the average weight of the remaining mobile phones is 45 grams, then find the average weight of all mobile phones. (approx.) Correct Answer 45 grams

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