COMEDK · Maths · 4. Permutation Combination
The number of four digit numbers strictly greater than 4321 formed using the digits \(0,1,2,3,4,5\) with repetition of digit is
- A 274
- B 292
- C 310
- D 312
Answer & Solution
Correct Answer
(C) 310
Step-by-step Solution
Detailed explanation
The total number of four-digit numbers that can be formed using the digits \(0, 1, 2, 3, 4, 5\) with repetition is \(5 \times 6 \times 6 \times 6 = 1080\). We count the numbers less than or equal to \(4321\). Case 1: Numbers starting with \(0\) are not four-digit numbers. So,…
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