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Mathematics, 16.02.2021 08:40 damian092

A pile of 104 copies of the book weighs 78 kg. Find: a) How many books weigh 30 kg?

b) The weight of 136 books.

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A pile of 104 copies of the book weighs 78 kg. Find: a) How many books weigh 30 kg?

b) T...

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