1. The farm tool factory wanted to produce 20,640 small farm tools, and 120 was half finished. How many pieces are produced on average every day? A shoe factory produced 3860 pairs of men's shoes, twice as many as women's shoes. How many pairs of women's shoes were produced? 3. To build the canal, 840m has been built, and120m has not been built. How many times have you repaired it? 4.38 Militia practiced shooting, and one shot hit the ring 1026. How many times did each militia fight on average? The length of the railway from Nanjing to Jinan is 540 kilometers. A train leaves from Nanjing and arrives in 9 hours. How many kilometers does this train travel per hour on average? 6. The breeding group raised 64 white rabbits, four times as many as the gray rabbits. How many gray rabbits does it have?