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Mathematics, 04.03.2021 18:50 anitadefrances

A scale balanced with one blue X block and 20 green blocks on the left side and 40 green blocks on the right side. A student bumped into the scale and knocked some blocks off so that only one blue X block and three green blocks remained on the left side. How many blocks do you need to remove from the right side to make the scale balance?

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