题目

阅读理解 Moneywith no strings attached. It's not something you see every day. But at Union Stationin Los Angeles last month, a board went up with dollar bills attached to it withpins and a sign that read, Give What You Can, Take What You Need. Peoplequickly caught on. And while many took dollars, many others pinned their own cashto the board. “People of all ages, races, and socio-economic（社会经济的）backgrounds gave and took, said Tyler Bridges of The Toolbox, whichcreated the project. We even had a bride in her wedding dress come up to theboard and take a few dollars. Most of t小太阳服装厂生产一批儿童服装，计划每小时生产120套，25小时完成．实际每小时生产200套，实际多少小时完成？（10分）