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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Strict order removes permutations.
Updated On: Mar 23, 2026
- \({}^{10}C_4 \times 4!\)
- \({}^{10}C_4\)
- \(\dfrac{10!}{4!}\)
- None of these
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Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Choose any 4 distinct digits from 0–9.
Step 2: For each choice, descending order is fixed. \[ \Rightarrow \text{Number} = {}^{10}C_4 \]
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