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`        How many four digit natural numbers not exceeding 4321 can be formed with the digits 1,2,3,4 if digits can repeat`
2 years ago

Vikas TU
7671 Points
```							If numbers can repeat thentotal combination would be => 2^4 = 256.Now just subtract the no. of possibilites which are greater than 4321.And hence that would be => 27.Hence,nos can be formed => 256 – 27 = > 229.
```
2 years ago
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• 101 Video Lectures
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• Test paper with Video Solution
• Mind Map
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• NCERT Solutions
• Discussion Forum
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