神马作文网How many blue cubes are in the bag?
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How many blue cubes are in the bag?
In a bag,there are red and blue cubes in the ratio 4：7.
I add 10 more red cubes to thebag.
Now there are red and blue cubes in the ratio 6：7.
In a bag,there are red and blue cubes in the ratio 4：7.
I add 10 more red cubes to thebag.
Now there are red and blue cubes in the ratio 6：7.
original:red:blue=4:7
later:red:blue=6:7
6-4=2----->10 red cubes
so,1------->5 cubes
thus,there are 7*5=35 blue cubes in the bag.
later:red:blue=6:7
6-4=2----->10 red cubes
so,1------->5 cubes
thus,there are 7*5=35 blue cubes in the bag.
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