Question
In an old books sale, 1880 paperbacks were sold on Thursday. 170 fewer paperbacks were sold on Wednesday than on Thursday. 290 more paperbacks were sold on Friday than on Thursday. How many paperbacks were sold altogether on the three days?
4 m

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In an old books sale, 1880 paperbacks were sold on Thursday. 170 fewer paperbacks were sold on Wednesday than on Thursday. 290 more paperbacks were sold on Friday than on Thursday. How many paperbacks were sold altogether on the three days?