The Library of Congressin Washington, D.C. is the largest library in the world. It contains nearly 125 million items. The library adds about 10,000 items to its collection daily. How many days will it take the library to reach about 150 million items?
If a library contains 125 million items to have 150 million it needs another:
150 milion - 125 million = 25 milion
If 10,000 items to its collection daily then:
25,000,000 / 10,000 = 2,500 days