Question
49 of a bag of balls were brown. 45 of the remaining balls were purple and the rest were red. If there were 21 more purple balls than red balls, how many balls were there in the bag altogether?
4 m

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49 of a bag of balls were brown. 45 of the remaining balls were purple and the rest were red. If there were 21 more purple balls than red balls, how many balls were there in the bag altogether?