Question
There are 66 gold balls and 21 brown balls in a basket. 611 of the gold balls are blemished. All the brown balls are not blemished. How many more gold balls than brown balls are not blemished?
4 m

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There are 66 gold balls and 21 brown balls in a basket. 611 of the gold balls are blemished. All the brown balls are not blemished. How many more gold balls than brown balls are not blemished?