Question
There are 66 yellow balls and 32 silver balls in a basket. 311 of the yellow balls are defective. All the silver balls are not defective. How many more yellow balls than silver balls are not defective?
4 m

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There are 66 yellow balls and 32 silver balls in a basket. 311 of the yellow balls are defective. All the silver balls are not defective. How many more yellow balls than silver balls are not defective?