Mathematics, 23.06.2019 10:30 vale2652

White shapes and blacks shapes are used in a game. some of the shapes are circles. all other are squares. the ratio of the number of white shapes to the number of black shapes is 3: 7. the ratio of the number of white circles to the number of white squares is 4: 5. the ratio of the number of black circles to the number of black squares is 2: 5. work out what fraction of all the shapes are circles?

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White shapes and blacks shapes are used in a game. some of the shapes are circles. all other are squ...