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math

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

  • math -

    Let L= large, S=small

    S+L=20
    30S+50L=880kg

    does that help?

  • math -

    yes! Thanks

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