Question:
The total number of 4-digit numbers in which the digits are in descending order, is
The total number of 4-digit numbers in which the digits are in descending order, is
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Descending order fixes the arrangement uniquely.
Updated On: Mar 20, 2026
- \(^{10}C_4 \times 4!\)
- \(^{10}C_4\)
- \( \dfrac{10!}{4!} \)
- None of these
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The Correct Option is B
Solution and Explanation
Choose any 4 distinct digits out of 10; their descending arrangement is unique.
⟹ Number = ¹0C₄
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