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There are 5 books on Mathematics, 4 on physics. In how many ways these be placed on shelf if the books on the same subject are to be together ?
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Number of ways to arrange
mathematics books together
Number of ways to arrange
physics books together
Total no. of ways
2 ways to arrange math and physics
i.e
or
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| Question Text | There are 5 books on Mathematics, 4 on physics. In how many ways these be placed on shelf if the books on the same subject are to be together ? |
| Answer Type | Text solution:1 |
| Upvotes | 150 |
