Question
In an old books sale, 1380 paperbacks were sold on Sunday. 110 fewer paperbacks were sold on Saturday than on Sunday. 390 more paperbacks were sold on Monday than on Sunday. How many paperbacks were sold altogether on the three days?
4 m

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In an old books sale, 1380 paperbacks were sold on Sunday. 110 fewer paperbacks were sold on Saturday than on Sunday. 390 more paperbacks were sold on Monday than on Sunday. How many paperbacks were sold altogether on the three days?