Question
There are 70 grey balls and 35 red balls in a basket. 25 of the grey balls are damaged. All the red balls are not damaged. How many more grey balls than red balls are not damaged?
4 m

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There are 70 grey balls and 35 red balls in a basket. 25 of the grey balls are damaged. All the red balls are not damaged. How many more grey balls than red balls are not damaged?