Question
In an old books sale, 1260 manuals were sold on Thursday. 100 fewer manuals were sold on Wednesday than on Thursday. 290 more manuals were sold on Friday than on Thursday. How many manuals were sold altogether on the three days?
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In an old books sale, 1260 manuals were sold on Thursday. 100 fewer manuals were sold on Wednesday than on Thursday. 290 more manuals were sold on Friday than on Thursday. How many manuals were sold altogether on the three days?