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In how many different ways can 4 physics, 2 math and 3 chemistry books be arranged in a row so that all books of the same branch are together?
1603
1728
1800
1200
There are three branches, three units of books: {physics}{math}{chemistry} - aranging branches 3!; Arranging the books within the branches: physics - 4!; math - 2!; chemistry - 3!; Total: 3!*4!*2!*3!=1728
By: MIRZA SADDAM HUSSAIN ProfileResourcesReport error
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