Mathematics, 27.04.2021 17:00, PencilLover101

40% of the marbles in a bag are red. The rest are orange and green. The ratio of the number of orange to the number of green is 4:5. If there are 30 green marbles, how many red marbles are there?

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40% of the marbles in a bag are red. The rest are orange and green. The ratio of the number of orang...