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A boy has 3 library tickets and 8 books of his interest in the library. Of these 8, he does not want to borrow Chemistry part II, unless Chemistry Part I is also borrowed. In how many ways can be choose the three books to be borrowed?
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Solution: 1) When chemistry part I is borrowed
2) When chemistry part I is not borrowed
Total number of ways
.
2) When chemistry part I is not borrowed
Total number of ways
.
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| Question Text | A boy has 3 library tickets and 8 books of his interest in the library. Of these 8, he does not want to borrow Chemistry part II, unless Chemistry Part I is also borrowed. In how many ways can be choose the three books to be borrowed? |
| Answer Type | Text solution:1 |
| Upvotes | 150 |
