Question
Mary had a total of 241 green and blue balls. She used 47 of her green balls and bought another 38 blue balls. The number of blue balls she had then become 14 the number of green balls. How many less blue balls than green balls did she have at first?
4 m

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Mary had a total of 241 green and blue balls. She used 47 of her green balls and bought another 38 blue balls. The number of blue balls she had then become 14 the number of green balls. How many less blue balls than green balls did she have at first?