Question
There are 55 pink balls and 29 blue balls in a basket. 511 of the pink balls are defective. All the blue balls are not defective. How many more pink balls than blue balls are not defective?
4 m

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There are 55 pink balls and 29 blue balls in a basket. 511 of the pink balls are defective. All the blue balls are not defective. How many more pink balls than blue balls are not defective?