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Permutations and Combinations - Data Intensity 1 :: Discussion
| 7. | How many four digit numbers can be formed using the digits {1, 3, 4, 5, 7,9}(repetition of digits is not allowed)? | |
| A. | 360 | |
| B. | 60 | |
| C. | 300 | |
| D. | 180 | |
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