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Mathematics, 03.08.2019 05:00 chrissy5189

Ashipment of tv sets, some weighing 30 kg each and the others weighing 50 kg each, has a total weight of 880 kg. if there are 20 tv sets all together, how many weigh 50 kg?

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Ashipment of tv sets, some weighing 30 kg each and the others weighing 50 kg each, has a total weigh...

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