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Permutations Practice Test 2
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© examsnet.com
Question : 6
Total: 30
The number of 4 digit numbers, that can be formed by the digits 3, 4, 5, 6, 7, 8, 0, no digit is beingrepeated is:
720
840
280
None of these
Validate
Solution:
* * * *
Required number = 6 × 6 × 5 × 4 = 720.
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