Question
There are 60 blue balls and 20 white balls in a basket. 25 of the blue balls are damaged. All the white balls are not damaged. How many more blue balls than white balls are not damaged?
4 m

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There are 60 blue balls and 20 white balls in a basket. 25 of the blue balls are damaged. All the white balls are not damaged. How many more blue balls than white balls are not damaged?